Codex:C

Carbuncle
"And to what do I owe the pleasure of your carbuncle?"

- Jack Sparrow to William "Bootstrap Bill" Turner

A painful localized bacterial infection of the skin, commonly referring to a red, infected spot. Also a deep-red garnet or precious stone. 

Captain
"'Captain, Captain Jack Sparrow."

- Jack Sparrow to James Norrington

The master of a ship, the captain was reponsable for its safety, and oversaw its crew.

Captain's Log
"I, Captain Jack Sparrow, being recently possessed of a ship, a crew and a hat, do take it upon me from this day forth to faithfully and truthfully recount our adventures on the high seas and lowly streets in this Captain's Log."

- Excerpt from Jack Sparrow's log

A personal journal kept by the captain of a ship, recounting the crew's exploits and discoveries. Jack Sparrow kept a log aboard the Barnacle.

Cast off
To turn the head of a vessel, commonly away from the wind, in getting under way. 

Cat o' nine tails
A multi-tailed whip. Jimmy Legs notably used this implement onboard the Flying Dutchman.

The cat's out of the bag
"The cat's out of the bag, Mister Turner!"

- Davy Jones to William "Bootstrap Bill" Turner

Old navy slang meaning the cat o' nine tails has been taken out of its bag, and is undoubtedly going to be used on someone.

CBP
Abbreviation of The Curse of the Black Pearl, first film in the Pirates of the Caribbean franchise. Also TCotBP, CotBP or Curse.

Commandeer
"Commandeer. We are going to commandeer that ship. Nautical term."

- Jack Sparrow

To seize by force, usually for military use.

CotBP
Abbreviation of The Curse of the Black Pearl, first film in the Pirates of the Caribbean franchise. Also TCotBP, CBP or Curse.

Creole
A person of Spanish heritage born in the Caribbean. From the Spanish "criadillo", meaning "bred" or "brought up". Minuit was a Creole.

Crimp
Pirate slang for a swindler or a member of a naval press-gang. Also the name of one of Davy Jones' crewmen: Crimp.

Crow's nest
"Me have one arm and a bum leg." "It's the crow's nest for you."

- Crippled man to Joshamee Gibbs

A platform or shelter for a lookout at or near the top of a ship's mast. 

Cur
"Come on you filthy, slimy, mangy cur&hellip;"

- Jack Sparrow to Prison Dog

A mongrel dog, especially a worthless or unfriendly one. Also used in reference to a mean or cowardly person. 

Curse
Abbreviation of The Curse of the Black Pearl, first film in the Pirates of the Caribbean franchise. Also TCotBP, CotBP or CBP.

Cutthroat
A murder, especially one who cuts throats; also an unprincipled, ruthless person. Cutthroats were known to frequent the Faithful Bride in Tortuga.