This is when a guy hits a girl in the forehead with the tip of his penis.
Specifically, the bottom part of a circumcised penis looks like a mushroom head, so the male would tap the bottom tip of his dick on her forehead with his mushroom and thus stamping her forehead.
Typically performed on females that you feel are sluts to make them feel like a complete slut.
Specifically, the bottom part of a circumcised penis looks like a mushroom head, so the male would tap the bottom tip of his dick on her forehead with his mushroom and thus stamping her forehead.
Typically performed on females that you feel are sluts to make them feel like a complete slut.
by john_doe_123 February 3, 2010

the mark left when one hits their partner in the face with their dick after thuroughly buttsexing them and having a poop covered dipstick, leaving a mushroom shaped mark on their head from the remaining fecal matter.
by Ramboyantone March 8, 2007

by mushroomstamp1304 September 17, 2013

the act of pushing the tip of your own cock into your anus - just slightly - thereby inking your tip - and then imprinting the mushroom image onto said victim
by Snarfley McFookenhagen December 23, 2006

A variation of teabagging where the bagger first marinates his undercarriage in a viscous substance such as barbeque sauce or ketchup. The goal is to leave a mushroom shaped mark on the victim.
by lakedaimon@comcast.net November 24, 2006

by Fo T Wada February 28, 2008

1. "hey man, jacquelyn is sleeping, be quiet!"
2. "hell naw, im gonna go in there and mushroom stamp the fuck out of her face!"
1. "do that ish...hold up, let me get the camera!"
2. "hell naw, im gonna go in there and mushroom stamp the fuck out of her face!"
1. "do that ish...hold up, let me get the camera!"
by Robby V. October 21, 2009
