Gay Out Of Necessity. A person who is so off-putting or unattractive, they can't ever gain traction romantically with the opposite sex. So they turn to members of their own sex to get affection.
Dude 1: "Bro, did you hear Nick say that he's bisexual?"
Dude 2: "Yeah, but we all know he's just saying that because he's a G.O.O.N. and doesn't want to admit he can't get the ladies."
similar to icup it's a forsaken comeback that if reply with a yes the replying persons back will explodebreaking their spine then slowly combusting then dieing.