slang To murder or attempt to murder someone with a gun. If you don't get out of here right now, we're gonna bust a cap in your ass!They busted a cap in his ass when he began hurling racial slurs at them.
slang To murder or attempt to murder someone with a gun. Primarily heard in US. If you don't get out of here right now, we're gonna pop a cap in your ass!They popped a cap in his ass when he began hurling racial slurs at them.