| AAC | Alter All Commands |
| AAD | Alter All Data |
| AAO | Add And Overflow |
| AAR | Alter At Random |
| AB | Add Backwards |
| ABC | AlphaBetize Code |
| ABR | Add Beyond Range |
| ACC | Advance CPU Clock |
| ACDC | Allow Controller to Delete Contents |
| ACDP | Allow Controller to Die Peacefully |
| ACM | Automatically Clear Memory |
| ACQT | Advance Clock to Quitting Time |
| ADB | Another Damn Bug |
| ADDN | ADD Nauseum |
| AEE | Absolve Engineering Errors |
| AFF | Add Fudge Factor |
| AFHB | Align Fullword on Halfword Boundary |
| AFP | Abnormal[ize] Floating Point |
| AFR | Abort Funny Routine |
| AFVC | Add Finagle's Variable Constant |
| AGB | Add GarBage |
| AGWA | Add and Get Wrong Answer |
| AI | Add Improper |
| AIB | Attack Innocent Bystander |
| AIB | Attack Innocent Bystanders |
| AISG | Access and Improve Student Grade |
| AMM | Add Mayo and Mustard |
| AMM | Answer My Mail |
| AMS | Add Memory to System |
| ANC | ANnoy Consultant |
| ANFSCD | And Now For Something Completely Different |
| AOI | Annoy Operator Immediate |
| AR | Advance Rudely |
| AR | Alter Reality |
| ARN | Add and Reset to Nonzero |
| ARNZ | Add and Reset to NonZero |
| ARZ | Add and Reset to Zero |
| AS | Add Sideways |
| ASQGSA | ASCII Stupid Question, Get a Stupid ANSI |
| AT | Accumulate Trivia |
| AWP | Argue With Programmer |
| AWTT | Assemble With Tinker Toys |
| AZ | Address by Zipcode |
| BA | Branch Anywhere |
| BAC | Branch to Alpha Centauri |
| BAD | Branch And Die |
| BAD | Branch to Auto Destruct |
| BAF | Blow All Fuses |
| BAFL | Branch And FLush |
| BAH | Branch And Hang |
| BALC | Branch And Link Cheeseburger |
| BAP | Branch And Punt |
| BAW | Bells And Whistles |
| BB | Branch on Bug |
| BBBB | Byte Baudy Bit and Branch |
| BBBF | Branch on Bit Bucket Full |
| BBC | Branch Before Compare |
| BBD | Branch on Bastille Day |
| BBI | Branch on Blinking Indicator |
| BBI | Branch on Burned-out Indicator |
| BBIL | Branch on Burned-out Indicator Light |
| BBLB | Branch on Blinking Light Bulb |
| BBOI | Branch on Burned-Out Indicator |
| BBR | Bug on BRanch |
| BBT | Branch on Binary Tree |
| BBW | Branch Both Ways |
| BC | Bypass Core |
| BCB | Burp and Clear Bytes |
| BCBF | Branch on Chip Box Full |
| BCF | Branch and Catch Fire |
| BCF | Branch on Chip box Full |
| BCG | Branch on CE Ground |
| BCIL | Branch Creating Infinite Loop |
| BCR | Backspace Card Reader |
| BCS | Branch and Crash System |
| BCU | Be Cruel and Unusual |
| BD | Backspace Disk |
| BD | Beat on Drum |
| BD | Branch to Data |
| BDB | Branch on Donner or Blitzen |
| BDC | Break Down and Cry |
| BDI | Branch to Data Indirect |
| BDM | Branch and Disconnect Memory |
| BDS | Branch to Data Segment |
| BDT | Burn Data Tree |
| BDU | Branch on Dense User |
| BE | Branch Everywhere |
| BEC | Bypass Error Check |
| BEO | Branch and Execute Operator |
| BEW | Branch Either Way |
| BF | Belch Fire |
| BF | Blow Fuse |
| BF | Branch Forever |
| BFD | Branch on Full Disk |
| BFF | Branch and Form Feed |
| BFM | Be Fruitful and Multiply |
| BH | Branch and Hang |
| BIM | Branch on Index Missing |
| BIMBO | Branch If Multi-Byte Overflow |
| BIR | Branch Inside Ranch |
| BIR | Branch and Invert Record |
| BIRM | Branch on Index Register Missing |
| BLC | Branch and Loop Continuous |
| BLI | Branch and Loop Infinite |
| BLM | Branch, Like, Maybe |
| BLMWM | Branch, Like, Maybe, Wow, Man |
| BLP | Boot from Line Printer |
| BLR | Branch and Lose Return |
| BLSH | Buy Low, Sell High |
| BLT | Break Little Thing |
| BM | Branch Maybe |
| BMF | Blow Main Fuse |
| BMI | Blow up Memory Immediate |
| BMI | Branch on Missing Index |
| BMI | Branch to Muncee Immediate |
| BMP | Branch and Make Popcorn |
| BMR | Branch [on] Multiple Registers |
| BMUS | Beam Me Up, Scotty |
| BNA | Branch to Nonexistant Address |
| BNCB | Branch and Never Come Back |
| BNL | Become a Neo-Luddite |
| BNR | Branch for No Reason |
| BO | Byte Operator |
| BOB | Branch On Bug |
| BOD | Beat On Disk |
| BOD | Beat On Drum |
| BOD | Branch on Operator Desperate |
| BODTH | Beat On Drum, then Toot Horn |
| BOH | Branch On Humidity |
| BOH | Branch on Operator High |
| BOHP | Bribe Operator for Higher Priority |
| BOI | Byte Operator Immediately |
| BOP | Boot OPerator |
| BOPL | Burn Out Pilot Lights |
| BOS | Branch on Operator Sleepy |
| BOT | Branch On Tree |
| BPB | Branch on Program Bug |
| BPC | Branch to Program Counter |
| BPD | Branch if Programmer Debugging |
| BPDI | Be Polite and Don't Interrupt |
| BPIM | Bury Programmer In Manuals |
| BPL | Branch PLease |
| BPM | Become a Psych Major |
| BPM | Branch on Phase of Moon |
| BPO | Branch on Power Off |
| BPO | Branch on Power On |
| BPP | Branch and Pull the Plug |
| BR | Byte and Run |
| BRA | Branch to Random Address |
| BRB | BRanch on Beaver |
| BRH | BRanch and Hang |
| BRI | BRanch Indefinitely |
| BRL | BRanch and Leak |
| BRO | BRanch and Overheat |
| BRO | BRanch to Oblivion |
| BS | Behave Strangely |
| BSC | Branch on Second Coming |
| BSC | Burst Selector Channel |
| BSD | BackSpace Disk |
| BSI | Back up Sewer Immediate |
| BSI | Backup Sewer Immediately |
| BSM | Branch and Scramble Memory |
| BSO | Branch on Sleepy Operator |
| BSP | BackSpace Punch |
| BSR | Branch and Stomp Registers |
| BSS | Branch on SunSpot |
| BSST | BackSpace and Stretch Tape |
| BST | Backspace and Stretch Tape |
| BTD | Branch on Time of Day |
| BTD | Byte The Dust |
| BTI | Blow Trumpet Immediately |
| BTJ | Branch and Turn Japanese |
| BTO | Branch To Oblivion |
| BTR | Break Tape and Reverse |
| BTW | Branch on Third Wednesday |
| BU | Branch Unexpectedly |
| BUTI | Blow Up Terminal Immediately |
| BVS | Branch and Veer South |
| BW | Branch on Whim |
| BWABL | Bells, Whistles, And Blinking Lights |
| BWC | Branch When Convenient |
| BWF | Busy, Wait Forever |
| BWOP | BeWilder OPerator |
| BYDS | Beware Your Dark Side |
| BYTE | BYte TEst |
| CAC | Calling All Cars |
| CAC | Cash And Carry |
| CAF | Convert ASCII to Farsii |
| CAI | Corrupt Accounting Information |
| CAIL | Crash After I Leave |
| CAR | Cancel Accounts Receivable |
| CAT | Confused And Tired |
| CB | Consult Bozo |
| CB | Crash and Burn |
| CBA | Compare and Branch Anyway |
| CBBR | Crash and Blow Boot Read-only memory |
| CBNC | Close, But No Cigar |
| CBS | Clobber BootStrap |
| CBS | Crash Bothersome Source code |
| CC | Call Calvery |
| CC | Change Channels |
| CC | Compliment Core |
| CCB | Chocolate Chip Byte-mode |
| CCB | Consult Crystal Ball |
| CCC | Crash if Carry Clear |
| CCCC | Cash Cheque and Check Cache |
| CCCP | Conditionally Corrupt Current Process |
| CCD | Choke Cough and Die |
| CCD | Clear Core and Dump |
| CCR | Change Channels at Random |
| CCS | Chinese Character Set |
| CCWR | Change Color of Write Ring |
| CD | Complement Disk |
| CD | Concoct Data |
| CDC | Clear Disk and Crash |
| CDC | Close Disk Cover |
| CDI | Crash Disk Immediate |
| CDIOOAZ | Calm Down, It's Only Ones And Zeroes |
| CDS | Change Disk Speed |
| CDS | Condense and Destroy System |
| CEMU | Close Eyes and Monkey with User space |
| CEX | Call EXterminator |
| CF | Come From [replaces goto] |
| CFE | Call Field Engineer |
| CFM | ConFuse Memory |
| CFP | Change and Forget Password |
| CFS | Corrupt File Structure |
| CG | Convert to Garbage |
| CH | Create Havoc |
| CHCJ | Compare Haig to Christine Jorgensen |
| CHPAMR | CHase Pointers Around Machine Room |
| CHSE | Compare Half-words and Swap if Equal |
| CIB | Change Important Byte |
| CIC | Cash In Chips |
| CID | Compare and Ignore Data |
| CIMM | Create Imaginary Memory Map |
| CIZ | Clear If Zero |
| CLBR | CLoBber Register |
| CLBRI | CLoBber Register Immediate[ly] |
| CM | Circulate Memory |
| CMB | Create Machine Bug |
| CMD | CPU Melt Down |
| CMD | Compare Meaningless Data |
| CMFRM | CoMe FRoM [essential for truly structured programming] |
| CMI | Clobber Monitor Immediate |
| CML | Compute Meaning of Life |
| CMP | Create Memory Prosthesis |
| CMS | Click MicroSwitch |
| CN | Compare Nonsensically |
| CNB | Cause Nervous Breakdown |
| CNS | Call Nonexistent Subroutine |
| CO | Confuse Operator |
| COCS | Copy Object Code to Source |
| COD | Crash On Demand |
| COLB | Crash for Operator's Lunch Break |
| COM | Clear Operator's Mind |
| COMF | COMe From |
| CON | Call Operator Now |
| COS | Copy Object code to Source file |
| COWYHU | Come Out With Your Hands Up |
| CP | Compliment Programmer |
| CPUFKM | CPU FlaKeout Mode |
| CPUWM | CPU Weird Mode |
| CPAR | Crumple Paper And Rip |
| CPB | Create Program Bug |
| CPN | Call Programmer Names |
| CPPR | Crumple Printer Paper and Rip |
| CR | Clobber Register |
| CRASH | Continue Running After Stop or Halt |
| CRB | CRash and Burn |
| CRD | Confirm Rumor by Denial |
| CRE | Create Random Error |
| CRM | CReate Memory |
| CRM | Clear Random Memory |
| CRN | Compare with Random Number |
| CRN | Convert to Roman Numerals |
| CRR | Convert to Roman numerals |
| CRYPT | reCuRsive encrYPt Tape |
| CS | Crash System |
| CSL | Curse and Swear Loudly |
| CSN | Call Supervisor Names |
| CSNIO | Crash System on Next I/O |
| CSS | Crash Subsidiary Systems |
| CSU | Call Self Unconditional |
| CTDMR | Change Tape Density, Mid Record |
| CTT | Call Time and Temperature |
| CU | Convert to Unary |
| CUC | Cheat Until Caught |
| CUME | Cover-Up Machine Errors |
| CUN | Cancel all User Numbers |
| CVFL | ConVert Floating to Logical |
| CVFP | ConVert Fortran to Pascal |
| CVG | ConVert to Garbage |
| CVU | ConVert to Unary |
| CWAH | Create Woman And Hold |
| CWB | Carry With Borrow |
| CWDC | Cut Wires and Drop Core |
| CWG | Chase Wild Goose |
| CWGK | Compare Watt to Genghis Khan |
| CWIT | Compare Watt to Ivan the Terrible |
| CWM | Compare Watt to Mussolini |
| CWOM | Complement Write-Only Memory |
| CZZC | Convert Zone to ZIP Code |
| DA | Develop Amnesia |
| DAB | Delete All Bugs |
| DAC | Divide And Conquer |
| DAD | Destroy A-Disk |
| DAMIT | transfer control to perdition |
| DAO | Divide And Overflow |
| DAP | De-select Active Peripheral |
| DAUF | Delete All Useless Files |
| DB | Drop Bits |
| DBL | Desegregate Bus Lines |
| DBP | Drop Back 15 yards and Punt |
| DBR | DeBase Register |
| DBTP | Drop Back Ten and Punt |
| DBZ | Divide By Zero |
| DC | Degauss Core |
| DC | Divide and Conquer |
| DCAD | Dump Core And Die |
| DCC | Dump Core to Chad box |
| DCD | Drop Cards Double |
| DCGC | Dump Confusing Garbage to Console |
| DCI | Disk Crash Immediate |
| DCON | Disable CONsle |
| DCOR | Delete CORe |
| DCR | Double-precision CRash |
| DCT | Drop Cards Triple |
| DCWPDGD | Drink Coffee, Write Program, Debug, Get Drunk |
| DD | Destroy Disk |
| DD | Drop Disk |
| DDC | Dally During Calculations |
| DDOA | Drop Dead On Answer |
| DDS | Delaminate Disk Surface |
| DDT | Debug Program |
| DDWB | Deposit Directly in Waste Basket |
| DEB | Disk Eject Both |
| DEC | Decompile Executable Code |
| DEI | Disk Eject Immediate |
| DEM | Disk Eject Memory |
| DFA | Disable FAns |
| DGO | Decrement the Grades of Others |
| DGT | Dispense Gin and Tonic |
| DHTPL | Disk Head Three Point Landing |
| DIA | Develop Ineffective Address |
| DIC | DisIntegrate Circuits |
| DIC | Drop Into Check |
| DICE | Delete Invalid Customer Engineer |
| DIE | DIsable Everything |
| DIF | DIsable Fuses |
| DIG | DIsable Gravity |
| DIGO | Data In, Garbage Out |
| DIH | Disable Interrupts and Hang |
| DIIL | Disable Interrupts and enter Infinite Loop |
| DIRFO | Do It Right For Once |
| DISC | DISmount CPU |
| DIVZDX | DIVide by Zero and Disregard eXception |
| DK | Destroy Klingons |
| DKWMM | DisK unit Washing Machine Mode |
| DKP | Disavow Knowledge of Programmer |
| DLN | Don't Look Now |
| DLP | Drain Literal Pool |
| DM | Destroy Memory |
| DMAG | Do MAGic |
| DMNS | Do what i Mean, Not what i Say |
| DMP | Destroy Memory Protect key |
| DMPE | Decide to Major in Phys. Ed. |
| DMPK | Destroy Memory Protect Key |
| DMPK | Disable Memory Protect Key |
| DMV | Double Mains Voltage |
| DMZ | Divide Memory by Zero |
| DND | Destroy Neighbor's Data |
| DNPG | Do Not Pass Go |
| DO | Divide and Overflow |
| DO | Divide and Overflow [IBM PC] |
| DOC | Drive Operator Crazy |
| DOV | Divide and OVerflow |
| DP | Destroy Peripherals |
| DPC | Decrement Program Counter |
| DPCS | Decrement Program Counter Secretly |
| DPK | Destroy storage Protect Key |
| DPMI | Declare Programmer Mentally Incompetent |
| DPN | Double Precision No-op |
| DPR | Destroy PRogram |
| DPS | Disable Power Supply |
| DR | Detach Root |
| DRAF | DRAw Flowchart |
| DRAM | Decrement RAM |
| DRBA | Deposit Round-off in my Bank Account |
| DRD | DRop Dead |
| DRI | Disable Random Interrupt |
| DROM | Destroy ROM |
| DRT | Disconnect Random Terminal |
| DS | Deadlock System |
| DSD | Dismount System Disk |
| DSI | Do Something Interesting |
| DSO | Disable System Operator |
| DSP | Degrade System Performance |
| DSR | Delete SubRoutine |
| DSR | Detonate Status Register |
| DSTD | Do Something Totally Different |
| DSUIT | Do Something Utterly, Indescribably Terrible |
| DTFFP | DecTape unload and Flappa FlaP |
| DTSHO | DecTape Spin Hubs Opposite |
| DTB | Destructively Test Bit |
| DTBCD | Destory Tapes B, C, and D |
| DTC | Destroy This Command |
| DTE | Decrement Telephone Extension |
| DTI | Do The Impossible |
| DTRT | Do The Right Thing |
| DTVFL | Destroy Third Variable From Left |
| DU | Dump User |
| DUD | Do Until Dead |
| DW | Destroy World |
| DWIM | Do What I Mean |
| DWIMNWIS | Do What I Mean, Not What I Say |
| DWIT | Do What I'm Thinking |
| DWIW | Do What I Want |
| EA | Enable Anything |
| EAC | Emulate Acoustic Coupler |
| EAL | Enable AC to Logic rack |
| EAO | Enable AC to Operator |
| EBB | Edit and Blank Buffer |
| EBB | Empty Bit Bucket |
| EBR | Erase Before Reading |
| EBRS | Emit Burnt Resistor Smell |
| EC | Eat Card |
| ECB | Eject Chad Box |
| ECF | Explode and Catch Fire |
| ECL | Early Care Lace |
| ECO | Electrocute Computer Operator |
| ECP | Erase Card Punch |
| ED | Eject Disk |
| ED | Execute Data |
| EDD | Eat Disk and Die |
| EDIT | Erase Data and Increment Time |
| EDMB | Electrocute DP Manager and Branch |
| EDP | Emulate Debugged Program |
| EDR | Emit Deadly Radiation |
| EDR | Execute Destructive Read |
| EDS | Execute Data Segment |
| EEG | Erase Eighteen minute Gap |
| EEOIFNO | Execute Every Other Instruction From Now On |
| EEP | Erase Entire Program |
| EFB | Emulate Five-volt Battery |
| EFD | Eject Floppy Disk |
| EFD | Emulate Frisbee using Disk pack |
| EFE | Emulate Fatal Error |
| EHC | Emulate Headless Chicken |
| EIA | Elvis Is Alive |
| EIAO | Execute In Any Order |
| EIEIO | Evaluate, Increment, Excrement, Invert, Output |
| EIO | Erase I/O page |
| EIO | Execute Invalid Opcode |
| EIOC | Execute Invalid OpCode |
| EIS | Encrypt Instruction Set |
| EJD | EJect Disk |
| EJDV | EJect Disk with initial velocity V |
| ELP | Enter Loop Permanently |
| EM | EMulate 407 |
| EM | Evacuate Memory |
| EMCP | Eject Math Co-Processor |
| EMIF | Erase Most Important File |
| EMM | Emulate More Memory |
| EMPC | EMulate Pocket Calculator |
| EMSE | Edit and Mark Something Else |
| EMSL | Entire Memory Shift Left |
| EMT | Electrocute Maintenance Technician |
| EMW | Emulate Maytag Washer |
| ENA | ENable Anything |
| END | Erase Neighbor's Data |
| ENE | ENable Everything |
| ENF | Emit Noxious Fumes |
| ENG | ENable Gravity |
| ENO | Emulate No-Op |
| EO | Electrocute Operator |
| EO | Execute Operator |
| EOB | Execute Operator and Branch |
| EOI | Explode On Interrupt |
| EOS | Erase Operating System |
| EP | Execute Programmer |
| EPD | Explode Peripheral Device |
| EPI | Execute Programmer Immediate[ly] |
| EPITS | Execute Previous Instruction Then Skip |
| EPL | Emulate Phone Line |
| EPMA | Erase Protected Memory Areas |
| EPP | Eject Printer Paper |
| EPP | Execute Political Prisoner |
| EPS | Electrostatic Print and Smear |
| EPS | Execute Program Sideways |
| EPSW | Execute Program Status Word |
| EPT | Erase Process Table |
| EPT | Erase Punched Tape |
| EPW | Erase Print Wheel |
| ERD | Eject Removable Disk |
| ERIC | Eject Random Integrated Circuit |
| ERM | Erase Reserved Memory |
| EROM | Erase Read-Only Memory |
| EROS | Erase Read-Only Storage |
| EROS | Erase Read-Only Storage [Everex int] |
| ERS | Erase Read-only Storage |
| ESB | Eject Selectric Ball |
| ESC | Emulate System Crash |
| ESD | Eat Shit and Die |
| ESD | Eject Spinning Dish |
| ESL | Exceed Speed of Light |
| ESNPR | Emergency Stop - No Possible Restart |
| ESP | Enable SPrinkler system |
| ESP | Execute Systems Programmer |
| ETC | EaT Card |
| ETI | Execute This Instruction |
| ETM | Emulate Trinary Machine |
| ETPH | E. T. Phone Home |
| EVC | Execute Verbal Commands |
| EWD | Enter Warp Drive |
| EWM | Enter Whimsy Mode |
| EXB | EXcrement and Branch |
| EXCE | EXecute Customer Engineer |
| EXE | EXecute Engineer |
| EXI | EXecute Invalid operation |
| EXO | EXecute Operator |
| EXOI | EXecute Operator Immediately |
| EXOP | EXecute OPerator |
| EXP | EXecute Programmer |
| EXPP | EXecute Political Prisoner |
| FAY | Fetch Amulet of Yendor |
| FB | Find Bugs |
| FC | Fry Console |
| FCJ | Feed Card and Jam |
| FCJ | Feed Cards and Jam |
| FD | Forget Data |
| FDR | Feed Disk Randomly |
| FERA | Forms Eject and Run Away |
| FFF | Form Feed Forever |
| FLD | FLing Disk |
| FLI | Flash Lights Impressively |
| FM | Forget Memory |
| FMP | Finish My Program |
| FOAD | Find Other Accumulator and Destroy |
| FOPC | False Out-of-Paper Condition |
| FPC | Feed Paper Continuously |
| FPT | Fire Photon Torpedoes |
| FRG | Fill with Random Garbage |
| FRS | Fetch Ring of Sauron |
| FS | Feign Sleep |
| FSM | Fold, Spindle, and Mutilate |
| FSR | Form Skip and Runaway |
| FSRA | Forms Skip and Run Away |
| FUBAR | Foul Up Buffers And Retry |
| FYBR | Follow Yellow Brick Road |
| GAP | Grade All Projects |
| GBB | Go to Back of Bus |
| GCAR | Get Correct Answer Regardless |
| GCR | Generate Confusing Results |
| GDP | Grin Defiantly at Programmer |
| GDR | Grab Degree and Run |
| GENT | GENerate Thesis |
| GE | {JO} Go to the End of the World {Jump Off} |
| GFD | Go Forth and Divide |
| GFM | Go Forth and Multiply |
| GIDO | Garbage In, Data Out |
| GIE | Generate Irreversible Error |
| GL | Get Lost |
| GLC | Generate Lewd Comment |
| GMC | Generate Machine Check |
| GMCB | Generate Machine Check and Bounce |
| GMCC | Generate Machine Check and Cash |
| GND | Guess at Next Digit |
| GORS | GO Real Slow |
| GPCR | Generate Petty Cache Request |
| GPE | Generate Parity Error |
| GR | Get Real |
| GREM | Generate Random Error Message |
| GREP | Global Ruin, Expiration, and Purgation |
| GRMC | Generate Rubber Machine Check |
| GS | Get Strange |
| GSB | Gulp and Store Bytes |
| GSI | Generate Spurious Interrupts |
| GSU | Geometric Shift Up |
| GTJ | Go To Jail |
| HAC | Hold All Calls |
| HACF | Halt And Catch Fire |
| HAH | Halt And Hang |
| HBW | Hang Bus and Wait |
| HCF | Halt and Catch Fire [IBM 360/63 did this at CIT once] |
| HCP | Hide Central Processor |
| HCRS | Hang in CRitical Section |
| HDH | Hi Dee Ho |
| HDO | Halt and Disable Operator |
| HDRW | Halt and Display Random Word |
| HELP | Hinder Everyone with Little Productivity |
| HELP | Type 'No Help Available' |
| HEO | Halt and Execute Operator |
| HF | Hide File |
| HFLAB | Halt if Flashing Lights on Address Bus |
| HGD | Halt, Get Drunk |
| HHB | Halt and Hang Bus |
| HIS | Halt in Imposible State |
| HOO | Hide Operator's Output |
| HRPR | Hang up and Ruin Printer Ribbon |
| HS | Hide and Seek |
| HSC | Halt on System Crash |
| HSJ | Halt, Skip and Jump |
| HTC | Halt and Toss Cookies |
| HTS | Halt and Throw Sparks |
| HUAL | Halt Until After Lunch |
| HUP | Hang Up Phone |
| HWP | Halt Without Provocation |
| IA | Illogical And |
| IAE | Ignore All Exceptions |
| IAI | Inquire And Ignore |
| IAND | Illogical AND |
| IAR | Ignore All Requests |
| IB | Insert Bug |
| IBM | Illegal Bit Maneuver |
| IBM | Increment and Branch to Muncee |
| IBP | Insert Bug and Proceed |
| IBR | Insert Bugs at Random |
| IC | Interlock Core |
| ICB | Interrupt, Crash and Burn |
| ICM | Immerse Central Memory |
| ICMD | Initiate Core Melt Down |
| ICR | Incur Costly Repair [Sun Tempest] |
| ICSP | Invert Crt Screen Picture |
| IDA | Invert Digital Array |
| IDC | Initiate Destruct Command |
| IDI | Invoke Divine Intervention |
| IDNOP | InDirect No-OP |
| IDPS | Ignore Disk Protect Switch |
| IECP | Introduce Error in Chess Program |
| IEOF | Ignore End Of File |
| IF | Invoke Force |
| IFOR | Initialize Fake-Out Routine |
| IGI | Increment Grade Immediate |
| IGIT | Increment Grade Immediate Twice |
| IGO | Increment Grade Overnight |
| IHC | Initiate Head Crash |
| IHTFP | Increment Hormones, Test For Puberty |
| II | Ignore Inquiry |
| II | Inquire and Ignore |
| IIB | Ignore Inquiry and Branch |
| IIC | Insert Invisible Characters |
| IIH | Ignore Inquiry and Hang |
| IIL | Irreversable Infinite Loop |
| ILPS | Invert Logical Power Supply |
| IM | Imagine Memory |
| IMBP | Insert Mistake and Blame Programmer |
| IMP | Imitate Monty Python |
| IMPG | IMPress Girlfriend |
| IMV | IMpress Visitors |
| INCAM | INCrement Arbitrary Memory |
| ING | INquire and iGnore |
| INI | Ignore Next Instruction |
| INOP | Indirect No-OP |
| INR | INstigate Rumor |
| INSQSW | INSert into Queue SomeWhere [for fino queues [first in never out]] |
| INW | INvalidate Warranty |
| IOI | Ignore Operator's Instruction |
| IOP | Interrupt and Order Pizza |
| IOR | Illogical OR |
| IOS | Ignore Operating System |
| IP | Increment and Pray |
| IPI | Ignore Previous Instruction |
| IPM | Ignore Programmer's Mistakes |
| IPOP | Interrupt Processor, Order Pizza |
| IPS | Incinerate Power Supply |
| IPS | Increment Power Supply |
| IPT | Ignite Paper Tape |
| IRB | Invert Record and Branch |
| IRBI | Insert Random Bits Indexed |
| IRC | Insert Random Commands |
| IRE | Insert Random Errors |
| IRI | Ignore Rude Interrupts |
| IRPF | Infinite Recursive Page Fault |
| ISC | Ignore Supervisor Call[s] |
| ISC | Ignore System Crash |
| ISC | Insert Sarcastic Comments |
| ISI | Increment and Skip on Inifinity |
| ISL | Illogical Shift Left |
| ISP | Increment and Skip on Pi |
| ISR | Illogical Shift Right |
| ISTK | Invert STacK |
| ITML | Initiate Termites into Macro Library |
| IU | Ignore User[s] |
| IXOR | Illogical eXclusive OR |
| IZ | Ignore Zeroes |
| JAA | Jump Almost Always |
| JBS | Jump and Blow Stack |
| JC | Jam Card punch |
| JC | Jump to Conclusions |
| JCI | Jump to Current Instruction |
| JDO | Jump and Destroy Operator |
| JFC | Jump to Floor and Crash |
| JFM | Jump on Full Moon |
| JHRB | Jump to H&R Block |
| JK | Jam Keypunch |
| JLP | Jump and Lose Pointer |
| JLR | Jump and Lose Return |
| JMAT | JuMp on Alternate Thursdays |
| JN | Jump to Nowhere |
| JNL | Jump when programmer is Not Looking |
| JOB | Jump On Beaver |
| JOM | Jump Out of Memory |
| JOM | Jump Over Moon |
| JOP | Jump OPerator |
| JPA | Jump when Pizza Arrives |
| JRAN | Jump RANdom |
| JRCF | Jump Relative and Catch Fire |
| JRGA | Jump Relative and Get Arrested |
| JRL | Jump to Random Location |
| JRSR | Jump to Random SubRoutine |
| JS | Jump Somewhere |
| JSC | Jump on System Crash |
| JSOR | Jump Somewhere Over Rainbow |
| JSU | Jump Self Unconditional |
| JT | Jump if Tuesday |
| JTT | Jump and Tangle Tape |
| JTZ | Jump to Twilight Zone |
| JWN | Jump When Necessary |
| KCE | Kill Consultant on Error |
| KCE | Kill repairman [CE] |
| KDO | Knock Disk Over |
| KEPITU | Kill Every Process In The Universe |
| KOP | Kill OPerator |
| KP | Krunch Paper |
| KPR | Kill PRogrammer |
| KSR | Keyboard Shift Right |
| KUD | Kill User's Data |
| KWWE | Kill Wicked Witch of East |
| KWWW | Kill Wicked Witch of West |
| LAC | Lose All Communication |
| LAGW | Load And Go Wrong |
| LAP | Laugh At Program |
| LAP | Laugh At Programmer |
| LC | Loop Continuously |
| LCC | Load and Clear Core |
| LCD | Launch Cartridge Disk |
| LCK | Lock Console Keyswitch |
| LEB | Link Edit Backwards |
| LGA | Load and Go Away |
| LIA | Load Ineffective Address |
| LMB | Lose Message and Branch |
| LMO | Load and Mug Operator |
| LMYB | Logical MaYBe |
| LN | Lose inode Number |
| LNP | Load N digits of Pi |
| LO | Load Operator |
| LOSM | Log Off System Manager |
| LPPAS | Line Printer Print And Smear |
| LPRDD | Line Printer Reverse Drum Direction |
| LPTCR | Line Printer Tangle and Chew Ribbon |
| LPA | Lead Programmer Astray |
| LPRTC | Load Program counter from Real Time Clock |
| LR | Load Revolver |
| LRA | Load RetroActively |
| LRB | Lose Record and Branch |
| LRD | Load Random Data |
| LSPSW | Load and Scramble PSW |
| LTS | Link To Sputnik |
| LTS | Loop Till Smokes |
| LUM | LUbricate Memory |
| LWE | Load WhatEver |
| LWM | Load Write-only Memory |
| LWOM | Load Write-Only Memory |
| MAB | Melt Address Bus |
| MAN | Make Animal Noises |
| MAZ | Multiply Answer by Zero |
| MBC | Make Batch Confetti |
| MBF | Multiply and Be Fruitful |
| MBH | Memory Bank Hold-up |
| MBTD | Mount Beatles on Tape Drive |
| MBTOL | Move Bug To Operator's Lunch |
| MC | Move Continuous |
| MD | Move Devious |
| MDB | Move and Drop Bits |
| MDC | Make Disk Crash |
| MDDHAF | Make Disk Drive Hop Across Floor |
| MFO | Mount Female Operator |
| MILI | Move It or Lose It |
| MLB | Memory Left shift and Branch |
| MLP | Make Lousy Program |
| MLP | Multiply and Lose Precision |
| MLR | Move and Lose Record |
| MMF | Melt Main Frame |
| MMLG | Make Me Look Good |
| MNI | Misread Next Instruction |
| MOG | Make Operator Growl |
| MOL | Move it Or Lose it |
| MOP | Modify Operator's Personality |
| MOU | MOunt User [causes computer to screw you] |
| MPLP | Make Pretty Light Pattern |
| MRZ | Make Random Zap |
| MSF | Make Silly Face |
| MSGD | Make Screen Go Dim |
| MSLB | Memory Shift Left and Branch |
| MSP | Mistake Sign for Parity |
| MSPI | Make Sure Plugged In |
| MSR | Melt Special Register |
| MST | Mount Scotch Tape |
| MTHRDV | Mag Tape High speed Rewind and Drop Vaccuum |
| MTE | Mangle Tape on Exit |
| MTI | Make Tape Invalid |
| MTS | Move to Tape Stretcher |
| MUG | Make Ugly Graphics |
| MULZTO | MULtiply by Zero and Trap on Overflow |
| MUM | Multi-Use Mnemonics |
| MVAR | MoVe to Random Address |
| MVLR | MoVe and Lose Record |
| MVRA | MoVe to Random Address |
| MW | Malfunction Whenever |
| MW | Multiply Work |
| MWAG | Make Wild-Assed Guess |
| MWC | Move and Wrap Core |
| MWT | Malfunction Without Telling |
| NBC | Negate By Clearing |
| NCW | Notch Carriage and Way |
| NESI | No one Expects the Spanish Inquisition |
| NMI | Negate Most Integers |
| NOP | Needlessly Omit Pointer |
| NPC | Normalize Program Counter |
| NPN | No Program Necessary [VAX] |
| NTGH | Not Tonight, i've Got a Headache |
| OBB | Overflow Bit Bucket |
| OCF | Open Circular File |
| OHS | Order Ham Sandwich |
| OMC | Obscene Message to Console |
| OMC | Overheat Memory Chip |
| OML | Obey Murphy's Laws |
| OPI | Order Pizza Immediately |
| OPP | Order Pizza for Programmer |
| ORSD | On Read error Self-Destruct |
| OSI | Overflow Stack Immediate |
| OSI | Overflow Stack Indefinite |
| OSP | Open Six-Pack |
| OTL | Out To Lunch |
| OU | Offend User |
| P$ | ! Punch Obscenity |
| PA | Punch in ASCII |
| PAL | Pack And Leave |
| PAS | Print And Smear |
| PAUD | PAUse Dramatically |
| PAZ | Pack Alpha Zone |
| PAZ | Pack Alpha and drop Zones |
| PBC | Print and Break Chain |
| PBD | Print and Break Drum |
| PBL | Pack Bags and Leave |
| PBM | Pop Bubble Memory |
| PBPBPBP | Place Backup in Plain Brown Paper Bag Please |
| PBS | Pop Before Stacking |
| PBS | Print on the Back of the Screen |
| PBST | Play Batch mode Star Trek |
| PCB | Pause for Coffee Break |
| PCD | PunCh Disk |
| PCI | Pleat Cards Immediate |
| PCR | Print and Cut Ribbon |
| PCR | Punch Card Reader |
| PCS | Push to Centre of Stack |
| PD | Play Dead |
| PD | Punch Disk |
| PDK | Punch DisK |
| PDLD | Power Down and Lock Door [to computer room] |
| PDM | Play Drum Memory [dated, wot?] |
| PDP | Pop Disk Pack |
| PDSK | Punch DiSK |
| PEHC | Punch Extra Holes in Cards |
| PEP | Print on Edge of Paper |
| PF | Punch, Fruit |
| PFD | Punt on Fourth Down |
| PFE | Print Floating Eye |
| PFML | Print Four Million Lines |
| PG | Print Garbage |
| PH | Phone Home |
| PHO | Pull Hair Out |
| PI | Punch Invalid |
| PIBM | Pretend to be an IBM |
| PIC | Print Illegible Characters |
| PIC | Print Invalid Character |
| PIC | Punch Invalid Character |
| PLSC | Perform Light Show on Console |
| PM | Punch Memory |
| PNIH | Place Needle In Haystack |
| PNRP | Print Nasty Replies to Programmer |
| PO | Punch Operator |
| POCL | Punch Out Console Lights |
| POF | Print On Fly |
| POG | Print Only Greek |
| POI | Punch Operator Immediate |
| POP | Pop Or Push |
| POPI | Punch OPerator Immediate[ly] |
| POPN | Punch OPerator's Nose |
| PPA | Print Paper Airplanes |
| PPC | Purge Pascal Compiler [HP 3000] |
| PPL | Perform Perpetual Loop |
| PPP | Print Programmer's Picture |
| PPR | Play Punk Rock |
| PPS | Push or Pop Stack [6502 does this sometimes] |
| PPSW | Pack Program Status Word |
| PRS | PRint and Smear |
| PS | Print and Smear |
| PS* | Punch Obscenity |
| PSD | Pause and Smoke Dope |
| PSP | Print and Shred Paper |
| PSR | Print and Shred Ribbon |
| PT | Punch Tape |
| PTP | Produce Toilet Paper |
| PUO | Perform Unknown Operation |
| PURB | Pick Up Random Bits |
| PVC | Punch Variable-length Card |
| PVLC | Punch Variable Length Card |
| PWP | Print Without Paper |
| PWS | create PoWer Surge |
| PYS | Program YourSelf |
| QBDH | Quit and Become a DeadHead |
| QWYA | Quit While Your Ahead |
| RA | Randomize Answer |
| RAM | Randomly Access Memory |
| RAM | Read Ambiguous Memory |
| RAN | RANdom opcode [similar to 16-bit what gate] |
| RASC | Read And Shred Card |
| RAST | Read And Shred Tape |
| RAU | Ridicule All Users |
| RBAG | Random Branch Address Generator |
| RBAO | Ring Bell and Annoy Operator |
| RBG | Random Bug Generator |
| RBLY | Restore Back-up from Last Year |
| RBT | Read Blank Tape |
| RBT | Rewind and Break Tape |
| RC | Read Chaos |
| RC | Rewind Core |
| RCAJ | Read Card And Jam |
| RCB | Read Chad Box |
| RCB | Read Command Backwards |
| RCB | Run Clock Backwards |
| RCC | Read Card and Chew |
| RCCP | Randomly Corrupt Current Process |
| RCF | Rewind Cabinet Fans |
| RCKG | Read Count Key and Garbage |
| RCKG | Read Count Key and Giggle |
| RCL | Rotate Carry Left |
| RCP | Reschedule Car Payments |
| RCP | Rewind Card Punch |
| RCR | Rewind Card Reader |
| RCRV | Randomly Convert to Reverse Video |
| RCS | Read Card and Scramble data |
| RCSD | Read Card and Scramble Data |
| RCSD | Read Card and Scramble Deck |
| RD | Randomize Data |
| RD | Reverse Directions |
| RDA | Refuse to Disclose Answer |
| RDB | Replace Database with Blanks |
| RDB | Run Disk Backwards |
| RDD | Reverse Disk Drive |
| RDDBF | Rock Disk Drive Back and Forth |
| RDEB | Read and Drop Even number of Bits |
| RDF | Randomize Directory Filenames |
| RDI | Reverse Disk Immediate |
| RDI | Reverse Drum Immediate |
| RDI | Reverse Drun Immediate |
| RDI | Rewind Disk Immediate |
| RDK | Reverse DisK |
| RDKI | Reverse DisK Immediate |
| RDP | ReaD card Punch |
| RDR | Reverse Disk Rotation |
| RDS | ReaD Sideways |
| RENVR | REName Variables Randomly |
| RET | Read and Erase Tape |
| RF | Read Fingerprints |
| RF | Rewind Forward |
| RFS | Resume Flight Simulator |
| RFSC | Read Feed and Shred Card |
| RG | Record Garbage |
| RHNEZ | Randomize and Halt if Not Equal to Zero |
| RHO | Randomize and Hold all Output |
| RIC | Rotate Illogical thru Carry |
| RID | Read Invalid Data |
| RIG | Read Interrecord Gap |
| RIODN | Rotate I/O Device Numbers |
| RIOP | Rotate I/O Ports |
| RIOS | Read In-Only Storage |
| RIR | Read Invalid Record |
| RIRG | Read Inter-Record Gap |
| RJE | Return Jump and Explode |
| RLC | Relocate and Lose Core |
| RLC | Reread Last Card |
| RLC | Rotate Left with Carolyn |
| RLI | Rotate Left Indefinitely |
| RLP | Refill Light Pen |
| RLP | Rewind Line Printer |
| RM | Reinitialize Meter |
| RM | Ruin My files |
| RMI | Randomize Memory Immediate |
| RMM | Read Manager's Mind |
| RMT | ReMove Trap |
| RMV | Remove Memory Virtues |
| RN | Read Noise |
| RNBS | Reflect Next Bus Signal |
| RNR | Read Noise Record |
| ROC | Randomize Op Codes |
| ROC | Rotate Outward from Center |
| ROD | ROtate Diagonally |
| ROLP | Rewind On-Line Printer |
| ROM | Read Operator's Mind |
| ROO | Rub Out Operator |
| ROOP | Run Out Of Paper |
| ROPF | Read Other People's Files |
| ROS | Reject Operating System |
| ROS | Return On Shield |
| RP | Read Printer |
| RPB | Raise Parity Bits |
| RPB | Read Print and Blush |
| RPB | Reverse Parity and Branch |
| RPBR | Reverse Parity and BRanch |
| RPC | Rotate Program Counter |
| RPL | Read PLotter |
| RPM | Read Programmer's Mind |
| RPU | Read character and Print Upsidedown |
| RRC | Rotate Random thru Carry |
| RRR | Randomly Rotate Register |
| RRR | Read Record and Run away |
| RRR | Rotate Right Randomly |
| RRRL | Random Rotate Register Left |
| RRRR | Random Rotate Register Right |
| RRSGWSSNK | Round and Round She Goes, Where She Stops, Nobody Knows |
| RRSTC | Return on Ruby Slippers Triple-Click |
| RRT | Record and Rip Tape |
| RRTD | Read Rules, Then Delete them |
| RRTU | Read Rules, Then Update them |
| RS | Random Slew |
| RS | Read Sideways |
| RSC | Read and Shred Card |
| RSD | Read and Shuffle Deck |
| RSD | on Read error Self-Destruct |
| RSSC | Reduce Speed, Step Carefully [for improved accuracy] |
| RST | Rewind and Stretch Tape |
| RSTOM | Read from STore-Only Memory |
| RSVP | Read, Shred, Vacillate and Punt |
| RT | Reduce Throughput |
| RTAB | Rewind Tape And Break |
| RTP | Reduce ThroughPut |
| RTR | Refuse To Run |
| RTS | Return To Sender [address unknown] |
| RVAC | Return from VACation |
| RWBT | ReWind and Break Tape |
| RWC | ReWind and Crash heads |
| RWCR | ReWind Card Reader |
| RWD | ReWind Disk |
| RWDSK | ReWind DiSK |
| RWE | Run Without Error |
| RWF | Read Wrong File |
| RWM | ReWind Memory |
| RWOC | Read Writing On Card |
| RWRT | Read While Ripping Tape |
| RWRT | Read, Write, and Rip Tape |
| RWT | Read/Write while stretching Tape |
| SA | Store Anywhere |
| SABC | Shake And Bake Chips |
| SAC | Scramble All Channels |
| SAD | Search And Destroy |
| SAI | Skip All Instructions |
| SAICZ | Set All Immediate Constants to Zero [pronounced "sexy"] |
| SAK | Snooze At Keyboard |
| SAS | Show Appendix Scar |
| SAS | Sit And Spin |
| SB | Shift a Bit |
| SBE | Swap Bits Erratically |
| SBF | Skip on Bitbucket Full |
| SBM | Shift a Bit More |
| SC | Scramble Channels |
| SC | Shred Cards |
| SCB | Spindle Card and Belch |
| SCCA | Short Circuit on Correct Answer |
| SCD | Shuffle and Cut Dec |
| SCH | Slit Cards Horizontal |
| SCI | Shred Cards Immediate |
| SCL | Shift a Chip Left |
| SCM | Set for Crash Mode |
| SCOM | Set Cobol-Only Mode |
| SCP | SCatter Printer |
| SCR | Shift a Chip Right |
| SCRBL | SCRibBLe to disk - faster than a write |
| SCRRC | SCRamble Register Contents |
| SCST | Switch Channel to Star Trek |
| SCTR | Stick Card To Reader |
| SD | Scatter Deck |
| SD | Scramble Directory |
| SD | Slip Disk |
| SD | Snare Drum |
| SDAT | Scatter DATa |
| SDC | Spool Disk to Console |
| SDD | Seek and Destroy Data |
| SDD | Spin Disk Dry |
| SDDB | Snap Disk Drive Belt |
| SDE | Solve Differential Equations |
| SDI | Self Destruct Immediate |
| SDK | Slip DisK |
| SDM | Search and Destroy Memory |
| SDR | Slam Down Rondo [worst soda ever made] |
| SEB | Stop Eating and Burp |
| SEOB | Set Every Other Bit |
| SESUR | Sing Elvis Songs Until he Returns |
| SEX | Set EXecution register |
| SEX | Sign EXtend |
| SFH | Set Flags to Half-mast |
| SFP | Send For Pizza |
| SFR | Send For Reinforcements |
| SFT | Stall For Time |
| SFTT | Strip Form Tractor Teeth |
| SGP | Shit or Get off the Pot |
| SHAB | SHift A Bit |
| SHABM | SHift A Bit More |
| SHB | Stop and Hang Bus |
| SHCD | SHuffle Card Deck |
| SHIT | Stop Here If Thursday |
| SHLBM | SHift a Little Bit More |
| SHON | Simulate HONeywell CPU [permanent no-op] |
| SHR | SHift Random |
| SHRC | SHRed Card |
| SHRT | SHRed Tape |
| SID | Switch to Infinite Density |
| SIP | Store Indefinite Precision |
| SIPA | SInking Point Arithmetic |
| SJV | Scramble Jump Vectors |
| SLC | Search for Lost Chord |
| SLP | Sharpen Light Pen |
| SLP | Sharpen Light Pencil |
| SLPA | SLiding Point Arithmetic |
| SM | Scatter Memory |
| SMC | Scatter Multiplexor Channel |
| SMC | Scramble Memory Contents |
| SMD | Spontaneous Memory Dump |
| SMR | Skip on Meaningless Result |
| SMS | Shred Mylar Surface |
| SNAFU | System Needs A Fuck-Up |
| SNARF | System Normalize And Reset Flags |
| SNM | Show No Mercy |
| SNO | Send Nukes on Overflow |
| SOAWP | SOlve All the World'd Problems |
| SOB | Shit On Byte |
| SOB | Stew On Brew |
| SOD | Surrender Or Die |
| SOI | Screw O'coin Intentional [personal one] |
| SOL | Shift On Low |
| SOL | Shit Out of Luck |
| SOP | Stop and Order Pizza |
| SOS | Sign Off, Stupid |
| SOT | Sit On a Tack |
| SP | Scatter Print |
| SPA | Sliding Point Arithmetic |
| SPB | Simulate Peanut Butter |
| SPD | SPin Disk |
| SPD | SPin dry Disk |
| SPD | Shuffle Program Deck |
| SPOFF | Switch Processor OFF |
| SPON | Switch Processor ON |
| SPPC | Suspend Printing Playboy Calendar |
| SPS | Set Panel Switches |
| SPSW | Scramble Program Status Word |
| SQPC | Sit Quietly and Play with your Crayons |
| SQPWYC | Sit Quietly and Play With Your Crayons |
| SRBO | Set Random Bits to Ones |
| SRBZ | Set Random Bits to Zeroes |
| SRC | Select Random Channel |
| SRC | Select Reader and Chew cards |
| SRC | Skip to Random Channel |
| SRCC | Select Reader and Chew Cards |
| SRD | Switch to Random Density |
| SRDR | Shift Right Double Ridiculous |
| SRNZ | Subtract and Reset to NonZero |
| SRO | Sort with Random Ordering |
| SROS | Store in Read-Only Storage |
| SRR | Shift Registers Random |
| SRSD | Seek Record and Scar Disk |
| SRSD | Seek Record and Scratch Disk |
| SRTC | Stop Real-Time Clock |
| SRU | Signoff Random User |
| SRZ | Subtract and Reset to Zero |
| SSB | Scramble Status Byte |
| SSD | Scratch System Disk |
| SSD | Seek and Scar Disk |
| SSD | Stacker Select Disk |
| SSD | Stop and Scratch Disk [3815] |
| SSJ | Select Stacker and Jam |
| SSJP | Select Stacker and JumP |
| SSM | Solve by Supernatural Means |
| SSM | Stacker Select Memory |
| SSP | Seek SPindle |
| SSP | Smoke and SPark |
| SST | Seek and Stretch Tape |
| SST | Stop and Stretch Tape |
| SSW | Scramble Status Word |
| ST | Set and Test |
| STA | STore Anywhere |
| STC | Slow To a Crawl |
| STD | Stop, Take Drugs |
| STM | STretch Magtape |
| STM | Skip on Third Monday |
| STO | Strangle Tape Operator |
| STPR | SToP Rain |
| STRIKE | STRIKE for more pay, better hours, etc. |
| STROM | STore in Read-Only Memory |
| STTHB | Set Terminal to Three Hundred Baud |
| SUIQ | Subtract User's IQ |
| SUME | SUprise ME |
| SUP | Shred User Printout |
| SUP | Solve Unsolvable Problem |
| SUR | Screw Up Royally |
| SUS | Stop Until Spring |
| SUS | Subtract Until Senseless |
| SWAT | SWAp Terminals |
| SWN | SWap Nibbles |
| SWOS | Store in Write-Only Storage |
| SWS | Sort to Wrong Slots |
| SWT | Select Wrong Terminal |
| SWU | Select Wrong Unit |
| SWZN | Skip Whether Zero or Not |
| SZD | Switch to Zero Density |
| TAH | Take A Hike |
| TAI | Trap Absurd Inputs |
| TARC | Take Arithmetic Review Course |
| TBFTG | Two Burgers and Fries To Go |
| TC | Transmit Colors |
| TCD | Transfer Control to Disk |
| TCOL | Transfer Control to Overhead Lights |
| TCPL | Transfer Control to Pilot Lights |
| TCWS | Transfer Control to Wall Socket |
| TDB | Transfer and Drop Bits |
| TDRB | Test and Destroy Random Bits |
| TDS | Trash Data Segment |
| TET | Triple Execution Time [SUN] |
| TH | Transfer and Hang |
| TLNF | Teach me a Lesson i'll Never Forget |
| TLO | Turn indicator Lights Off |
| TLR | Transfer and Lose Return |
| TLW | Transfer and Lose Way |
| TMD | Transfer Monitor to Disk |
| TN | Take a Nap |
| TOAC | Turn Off Air Conditioner |
| TOG | Take Out Garbage |
| TOG | Time Out, Graduate |
| TOH | Take Operator Hostage |
| TOO | Turn On/off Operator |
| TOP | Trap OPerator |
| TOS | Trash Operating System |
| TOW | Take Over World |
| TPD | Terminal Printer Destruct |
| TPD | Total Program Diagnostic |
| TPD | Triple Pack Decimal |
| TPDH | Tell Programmer to Do it Himself |
| TPF | Turn Power oFf |
| TPN | Turn Power oN |
| TPO | Turn Power Off |
| TPR | Tear Paper |
| TR | Turn into Rubbish |
| TRA | Te Rdls Arvs [type ridiculous abbreviations] |
| TRD | TRansfer and Drop bit |
| TSE | Test and Swap if Equal |
| TSH | Trap Secretary and Halt |
| TSM | Trap Secretary and Mount |
| TST | Trash System Tracks |
| TSTT | TeSt a biT for Two |
| TTCN | TeleType Clunk Noise |
| TTEKB | TeleType Electrify KeyBoard |
| TTA | Try, Try Again |
| TTAS | Twist Tape And Shout |
| TTIHLIC | Try To Imagine How Little I Care |
| TTITT | Turn 2400 foot Tape Into Two 1200 foot Tapes |
| TTL | Tap Trunk Line |
| TTL | Time To Logoff |
| TYF | Trust Your Feelings |
| UA | Unload Accumulator |
| UAI | Use Alternate Instruction set |
| UAP | (AM)Use All Power Available (And More) |
| UCB | Uncouple CPU[s] and Branch |
| UCIP | Update Card In Place |
| UCK | Unlock Console Keyswitch |
| UCLB | Uncouple Comm Lines and Branch |
| UCM | Uncouple CoMm lines and branch |
| UDR | Update and Delete Record |
| UEPM | Update and Erase Programmer's Mind |
| UER | Update and Erase Record |
| UFO | Unidentified Flag Operation |
| ULDA | UnLoaD Accumulator |
| UMH | Use Mains voltage as logic High |
| UMR | Unlock Machine Room |
| UNPD | UNPlug and Dump |
| UOP | Useless OPeration |
| UP | Understand Program[mer] |
| UPA | Use all Power Available |
| UPC | Understand Program[mer]'s Comments |
| UPI | Undo Previous Instruction |
| URB | Update, Resume and Branch |
| US | Upset Stacker |
| UTF | Unwind Tape onto Floor |
| UTF | Use The Force |
| UUBR | Use Undefined Base Register |
| VAX | Violate All eXecutions |
| VFE | Violate Field Engineer |
| VFO | Violate Female Operator |
| VM | Virtueless Memory |
| VMA | Violate Maintenance Agreement |
| VNO | Violate Noise Ordinance |
| VPA | Vanishing Point Arithmetic |
| VVM | Vaporize Virtual Memory |
| WAD | Walk Away in Disgust |
| WAT | WAste Time |
| WBB | Write to the Bit Bucket |
| WBT | Water Binary Tree |
| WC | Waste Core |
| WCKG | Write Count Key and Giggle |
| WCR | Write to Card Reader |
| WDR | Warp disk DRive |
| WED | Write and Erase Data |
| WEMG | Write Eighteen Minute Gap |
| WF | Wait Forever |
| WGPB | Write Garbage in Process-control Block |
| WHFO | Wait until Hell Freezes Over |
| WHP | Wave Hands over Program |
| WHR | Write Hit Record |
| WI | Why Immediate |
| WI | Write Illegibly |
| WID | Write Invalid Data |
| WMC | Write Millions of Comments |
| WMTE | Wrap Memory Transfer Erase |
| WN | Why Not? |
| WNAM | We Need A Miracle |
| WNHR | Write New Hit Record |
| WNR | Write Noise Record |
| WP | Write Poop |
| WPET | Write Past End of Tape |
| WPF | Write to Protected Files |
| WPM | Write Programmer's Mind |
| WRC | Write on Read-Cycle |
| WRP | Write RAM Permanently |
| WSE | Write Stack Everywhere |
| WSWW | Work in Strange and Wondrous Ways |
| WUPO | Wad Up Printer Output |
| WWLR | Write Wrong Length Record |
| WWR | Write Wrong Record |
| XAND | eXclusive AND |
| XIO | eXecute Invalid Opcode |
| XKF | eXecute Kermit the Frog |
| XM | eXclusive Maybe |
| XMB | eXclusive MayBe |
| XOH | eXecute no-Op and Hang |
| XOR | eXecute Operator |
| XOS | eXchange Operator's Sex |
| XPR | eXecute PRogrammer |
| XPSW | eXecute Program Status Word |
| XSP | eXecute Systems Programmer |
| XVF | eXchange Virtue for Fun |
| YAB | Yet Another Bug |
| YASE | Yet Another Stupid Error |
| ZAP | Zero and Add Packed |
| ZAR | Zero Any Register |
| ZD | Zap Directory |
| ZEOW | Zero Every Other Word |
| ZPI | ZaP Immediate |