origionated in a black porn film with many incredibly black men standing round as one fucks a white chick. All of them saying "Spread that ass...spread that ass...SPREAD THAT ASS!" as he attempts to place his nutsack within the anal cavity and his dick in her pussy at the same time, as this is difficult to do the surrounding black men feel obliged to say many black phrases like "booya" and "spread that ass" to help him.
p1: nuts in the ass dick in the pussy?
p2: aaw nigga! spread that ass!
*bitch spreads her ass some more*