A slang phrase referring to the posession and use to a certain individial of a firearm or any other object resembling a firearm that emits any sort of a projectile.
To unload your gun on someone and ultimatley, kill them. A very popular activity in the ghetto.
Nigga 1: Hey you want some of dis sheeit?
Nigga 2: Ah, I don wan dat shit.
Nigga 1: I don give a fuck, I don't play that shit, and I'm about to bust a cap motha nigga.