^ Click above for a fresh pirate insult.
General pirate vocabulary:
Ahoy. Avast.
Aye. Aye Aye.
Arrrrr, yarrr, harr.
Hi ho. Yo-Ho
Me = My
cap'n, squire, jim lad
scurvy dog, bilge rat, land lubber
me hearty
wench/beauty/lass: bonnie, proud, buxom,
 saucy, foul, sharp tounged, loose-lipped.
be, bin, gunna be
timbers, briches
mizzen mast, yardarm, port, starboard, bow, stern
booty, treasure, dubloons
grog, rum
keel haul
Avast ye scurvy scum / salty sea dog.
Pillage her loins.
Treasure acquisition and redistribution specialist.
Aye me hearty, how be the wind.
Ahoy me Jim lad, tis a fine day fer a party, ripe for cake.
Make your own insults by simply combining adjectives and a noun:
| Adjective #1 |  | Adj #2 |  | Adj #3 | Noun |  | 
| unmuzzled |  | onion-eyed |  | rough-hewn | nut-hook |  | 
| bawdy |  | beslubbering |  | bat-fowling | baggage |  | 
| vain |  | villainous |  | vassal-willed | bugbear |  | 
| lumpish |  | lewd-minded |  | loggerheaded | lout |  | 
| churlish |  | cockered |  | clapper-clawed | boar-pig |  | 
| fobbing |  | full-gorged |  | frothy | flirt-gill |  | 
| rank |  | rude-snouted |  | ruttish | ratsbane |  | 
| craven |  | crook-pated |  | clouted | canker-blossom |  | 
| puking |  | pribbling |  | common-kissing | maggot-pie |  | 
| jarring |  | dread-bolted |  | pignutted | coxcomb |  | 
| fly-bitten |  | fool-born |  | folly-fallen | foot-licker |  | 
| pox-marked |  | puny |  | plume-plucked | pottle-deep |  | 
| fen-sucked |  | fawning |  | flap-mouthed | flax-wench |  | 
| spongy |  | sheep-biting |  | swag-bellied | skainsmate |  | 
| droning |  | dankish |  | dizzy-eyed | dewberry |  | 
| gleeking |  | goatish |  | gorbellied | giglet |  | 
| warped |  | weather-bitten |  | weedy | whey-face |  | 
| currish |  | knotty-pated |  | reeky | claybrain |  | 
| milk-livered |  | malt-wormy |  | measled | mammet |  | 
| surly |  | saucyspleened |  | spur-galled | scut |  | 
| mammering |  | motley-mind |  | mangled | minnow |  | 
| ill-borne |  | idle-headed |  | impertinent | infection |  | 
| beef-witted |  | boil-brained |  | bootless | bladder |  | 
| tickle-brained |  | tottering |  | toad-spotted | beetlehead |  | 
| half-faced |  | hedge-born |  | hasty-witted | harpy |  | 
| headless |  | hugger-muggered |  | horn-beat | hedge-pig |  | 
| wayward |  | artless |  | yeasty | puttock |  | 
| rump-fed |  | elf-skinned |  | imp-bladdered | barnacle |  | 
Resources:
"Talk Like a Pirate Day" song.
Talk Like a Pirate .com
"Pirate" Image Search