Where a person goes and jacks off in the bathroom of a High school, palms his semen, walks into the cafeteria, and exacts revenge on a person that mushroom stamped the person who is givnig the semen slap. Then slaps the person, with the hand full of semen.
by funniest thing to happen this year at BHS March 29, 2005
When having sex afterwards if you finish on your own you jizz in your hand and slap her in the face with the semen in the hand.
by Chris Ochs October 22, 2006