Mr. Pirateson is the current owner of The Poop Deck, a fast food business seen in "Friend or Foe." He is quite demanding, and comes off as rude sometimes. He can only say "Arrr!" Like Gary the Snail, the tone of his voice can give viewers a hint as to what he was saying.
He let a "Smelly Hairy Fleabag" (Gorilla) serve food at The Poop Deck.