1 definition by somerandomguy987

Shamcocking

when a man colors his penis green in rememorance of St. Patricks day and proceeds to have sex or recieve head from a woman. There will be green marker left behind on the woman for everyone to see.

Hey look at Ashleys mouth its green. She was definitely just shamcocking Jared.

by somerandomguy987 May 5, 2011