I love the Pirate language, that as filled with fun and raw words.
Here you have a little list with the most common words in film and books

* Ahoy - Hallo
* Avast - Stop
* Parley - Conversation between to sides to discuss
 a halt to the fighting or related matters.
* Shiver me timbers! - An expression of shock
* Davy Jones's Locker - the imaginary place at the ocean bottom
that holds dead sailors and pirates...a reference to death
* "Arrr" -  can be used by a pirate in almost any context.
* Booty - Gods, gold taken by force
* Me - My
* Ye - You
* Yer - Your
*Matey - Friend
* Landlubber - Someone who is not one sea
*Kraken - A mythical sea monster alleged to
 appear off the coast of Norway.
* Seadog - An old or experienced sailor.
  * Buccaneer - a pirate who be answerin' to no man or government.
*Doubloons - pieces of gold
* Me Heartey - A friend or a shipmate
*Scallywag -  A bad person