2 definitions by ZakZakzak

To vigorously finger a woman's vagina. Possibley using one/more/all fingers.
Bob: goddamn your hand stinks
Jeff: yea I was hand jamming your mothers rotten vagina last night.
by ZakZakzak October 19, 2012
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When someone comes to your place , drinks all your booze, rock n' rolls all night, and has sex with your mom/sister/girlfriend.
Bob: damn Jeff , you are hungover today huh?
Jeff: Holy shit yea, last night I went to Bill's place and pulled a Kotzo. I think I got his sister pregnant. Gimme a beer.
by ZakZakzak October 19, 2012
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