A combination of buffalo bill and the goat. During a buffalo goat, a man tucks his penis behind his thighs, only showing a triangle of pubic hair. He then proceeds to quickly turn around, thus giving the audience "the goat," completing the buffalo goat. Preferably done on chatroulette or in public.
"Is that a guy or a woman."
"Dude, it's a woman. Wait, maybe it is a dude."
(Gives buffalo goat)
"Yeah, that's a dude."