Definitions by funniest thing to happen this year at BHS

Semen Slap 

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.

Greg walked into the cafeteria and semen slapped the shit out of him.

Semen Slap by funniest thing to happen this year at BHS March 29, 2005