a blowjob from a hobo at a 7-11 in the middle of the night
as first defined by online comic Penny Arcade.
"Dude, just cause that chick wouldn't hook up with you doesn't mean you need to go get a blowbo."
"Shut it, bro. I need to get off and that bum needs $5 for more booze. It's a win-win situation."