"Thar she blows!" - The pirate equivalent of "Whoop, there it is!". [Arrgh...that be Whaler talk, and no respectable pirate would speak like a blubber lubber!]
"ARRRGHHHH" - this phrase shows general discontent. or it can also mean that someone is about to get wild- a.k.a. a battle cry.
"Ahoy, me hearties!" - Equivalent of "Hello, my friends!"
"Dogs ahoy!" - Equivalent of "Things to kill, straight ahead."
"Shiver me timbers!" - Like saying "Oh My!" like my legs are shaking
"Skuttle me Skippers" - Making a mistake and being judged for/by it.
"Avast ye varmint" - Stop right there young man because you're in big trouble.
"Weigh anchor!" - Let's go!
"Yarr." - I agree.
"Yarr!" - I see your point, and agree wholeheartedly.
"Yarr-ha-harr!" - You're right!
"Yarr?" - Excuse me, what did you say?
"Yarrgh" - I respectfully acknowledge that you are right and I am wrong
"Blow me down!" - You don't say? How surprising.
"Ahoy" - Call to attract attention, something akin to 'Hello, there!'
"Jack" - A flag or a sailor; showing how sailors would refer to their ship's colors as one of the crew. Hence Jack Tar for sailor and the Union Jack flag.
"Salmagundi" - A dish of chopped meat, eggs, anchovies, onions and anything else the cook can throw in; A piratical delicacy
"Weigh anchor! Hoist the mizzen!!!" - Basically adds on to Let's go!