A mushroom stamp

when a male slaps his penis off the forehead of another individual, leaving a mushroom-shaped mark.

Jen was steppin out of line, so i gave her a mushroom stamp.

by Andrew O. Ben S. TC M. October 7, 2005

mushroom stamping

The act of pressing the head of ones penis into another persons forehead or other facial area.

As soon as Ben passed out, Jer proceeded to mushroom stamp him to no avail.

by Snapdragon August 8, 2003

mushroom stamped

Pressing ones penis on the forehead of an unfortunate individual.

Greg fell asleep and was mushroom stamped.

by n/a March 31, 2005

mushroom stamp

slapping a penis on top of someones forehead or on a car window

we gotta get out of here i just mushroom stamped that cops car

that guy parked so close to me i mushroom stamped his window

by ass master January 19, 2003

mushroom stamp

when you hit someone with your penis and leave a mushroom shaped mark

That girl got mushroom stamped!

by Dakota w. July 11, 2008

Mushroom Stamp

To slap a female in the forehead with intent to leave a mark with your cock

The bitch was pissing me off, so i Mushroom Stamped her.

by Lady Tiger January 7, 2003

mushroom stamp

Verb: An act occurring after anal intercourse, where the man removes his "Mushroom"-headed warrior from his female participant's rectum or balloon knot, and proceeds to take his poo-stained man-pole, and slaps his partner in the face or forehead (whatever preferred), leaving a mark (or stamp) in the shape of the tip of the distributor's dong (mushroom-esque);

When I was finished penetrating her poop shoot, I used her rectal leftovers to give her a Mushrrom Stamp

by Tony Cooper September 1, 2004