Generally performed by cook or some sort backline employee-type. For whatever reasons,(i.e. plate sent back, difficult diner or just don't like someone,) the cook removes his cyclops stick from his britches and strikes a portion of the meal and sends it out to be ate.

NOTE: this move requires a flacid penis. while dangling your dong in front of a woman in an attempt to 'woo' her, you grab the base of your member and swing it in a counterclockwise ninja motion smacking her flush on either cheeck leaving a welt resembling a purple mushroom. in germany this is seen as a sign of affection...in tennessee it will get you killed.

Placing the head of your Johnson on an unsuspecting person.

While in the act of doing a mushroom stamp, you jizz(explode) at the same time.

The mark or bruise left after slapping a girl forcefully with your dick. (Usually after oral sexual intercourse)

After fucking your chick (or dude) in the ass, you pull out your dick and slap her (or him) in the face thus giving them a shitty mushroom stamp hence the chocolate mushroom stamp.

pullin your nuts out and droppin them on a bitches forehead