Ahoy! – Hello!
Arrr! – It means practically anything, use it as much as you can.
Avast - Definitely
Aye! – Yes
Loot – Treasure.
Buccaneer, Freebooter, Corsair
Brigantine, Carrack, Caravel, Clipper, Cocca, Corvette, Frigate, Gallivat, Galea, Galleon, Gulet, Sloop – Types of ship
Port, Starboard, Bow, Stern – Directions, in order: left, right, front, back
Big Blue – The sea
Latrine - Toilet
Davy Jones’ Locker – Bottom of the sea (meaning the place where those who fall into the sea go to die)
Hoist the sails - To leave
Scandal, bilge rat – Criminal; these are also ways to make fun of fellow pirates or names to call the lower ranks of the crew.
Slop – Food