A sexual act in which a man strikes another human in the face with the head of his penis while in the act of urinating. Note: not to be confused with the golden mushroom the soup.
by ruff54 December 14, 2009
Northern mushroom is a direct Cantonese translation of the phrase "buck goo," literally "north mushroom," which is often used in Hong Kong and Macau to refer to prostitutes (usually referring to those coming from Mainland China as the mainland is north of Hong Kong and Macau).
by jef2k85 February 28, 2010
to forcebaly smack someone on the forehead with a penis, thuse leaving a mushroom-shaped wealt on face
by faroramzes October 30, 2003
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
that guy parked so close to me i mushroom stamped his window
by ass master January 19, 2003
by MindFuck69 November 09, 2010
When a man's pubic hair exceeds the length of his penis, leaving only a small portion of the tip visible.
I was about to have sex with this guy I met at the club, but once undressed I was disappointed at the sight of his peeking mushroom.
by Not at the table, Carlos. April 15, 2010
by alex October 22, 2004