The act of being sexiled from the place where one was going to sleep after already being sexiled. It is rumored that this freak accident has only happened 13 times in history.
Alex: Hey Greg, can I stay in your room tonight? Mike is sexiling me because his girlfriend is in town for the weekend.
Greg: Yeah sure, just pull your mattress in there.
Greg: Dude, ... I'm sorry, this girl is coming over. She really wants it bad.
Alex: Fuck ... Are you really going to Double Sexile Me?
Greg looks at new text and leaves the room.
Alex finally gets to go to sleep