“There’s a McGarett in it for your friend. And also one for you, of course,” Alfie said. “Think about it.”
In the ticket-tout slang that Alfie had picked up from George, a McGarrett was fifty pounds -- cash in hand, of course. (from Mind's Eye by Paul McAuley)
2) The action of releasing an orgasm after many, many days without masturbation.
While downloading the latest Miley Cyrus DVD illegally, on the site MegaRelease, Mr. McGee became extremely horny so he grabbed his wife and mega-released all over her face.
When someone loses all their facilities on a night out, they become a drunk toddler. They have no recollection of the event, and actively shy away from chats of said events.