Bang Gunk!
While a chick is blowing you, you secretly shit in your hand. Then, you act like you're pulling your cock out of her mouth and you forcefully replace it with a fistfull of shit. While she's choking, you open-handedly slap her, leaving her with a shitty handprint on her face...BANG GUNK!
That crazy bitch couldn't suck cock so I Bang Gunk'ed her