When a man has any questionable residue on his penis and, using the head, slaps or "stamps" any region of his partners face... leaving a shroom imprint with the residue. Also applies when a man gains enough force while slapping a person's face with his member, to leave a red mushroom imprint.
Eddie was bored and thought it would be funny to shroom stamp his best friend's forehead... it wasn't.
by ShanMakesMeSmile July 28, 2009
Get the Shroom Stampmug. When a man has been with a woman and his member is in any way tainted by any type of smearable substances and uses the head of his member to apply a shroom stamp to her face. These stamps may be applied gently and lovingly or popped on quickly.
by Chip Kimbal February 07, 2007
Get the shroom stampmug.