While having vaginal intercourse with a female who is currently going through her minstrel cycle, you remove your penis and violently smack it on her forehead. This action results in a red mushroom like stamp on the females forehead.
Craig Boggs is a true dogg! He was banging this chick last night and he gave her a bloody mushroom stamp! Doubt she ever calls him back.
When a significant other has a bloody or broken nose and the other, preferably male, slaps his dick and balls on the injured nose and the blood smears into a mushroom shape.
Person 1: Hey is your nose broken?
Person 2: Yeah it is why?
Person 1: Lemme slap my dick on that thing and make a bloody mushroom.