Placing your dick over the shoulder of a seated person in accordance to the placement of a parrot on a Captain's shoulder.
Joe: Yo dude! You see Bill over at his desk?
Bob: Yea, why?
Joe: Go over, and give him The Jack Sparrow.
Lt: Yo, did you get any ass last night?
Ac Money: Nah man, but I Jack Sparrowed the shit out of some girl.