When a guy sees a girl who he thinks is attractive, he may show signs of this by staring or saying something. If someone else thinks the girl is underage, they may exclaim "Jailmate." It refers to the fact that if the guy who originally spotted the girl actually made a move for her, he would go to jail; as she is underage.
John: "Christ, she's fit!"
Chris: "Jailmate, I'm not sure she's done her GCSE's."
Alex: "Look at that Steve!"
Steve: "Jailmate, she's fuckin' 15"
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi
May I have an order of regular degular buttermilk pancakes? Without all the added jazz? Hold the blueberry smiley face, strawberry glaze, chocolate chips and whipped cream.