This is the art of when you are giving it to a girl doggy style in the ass. Right as you are about to finish you donkey punch her in the back of the head and take a plastic bag and wrap it around her head and then cum all over her. While she is knocked out you leave her naked (with the bag still on her head) by the side of a busy highway. It is truly a classy maneuver.
So I gave a California tight bag to this bitch last night and now she won't call me.