Crunk Klug's definitions
When a male passes out naked on his side with his ballsac behind his legs exposing his tightened nutskin around his testicle, which is similar to a vagina from behind.
Thomas: Did you see how much Michael drank last night?
Josh: Yeah! He passed out and everybody went into his room and saw his butt pussy.
Josh: Yeah! He passed out and everybody went into his room and saw his butt pussy.
by Crunk Klug April 2, 2009
Get the Butt Pussymug.