Definitions by Tommie The Tomahawk

J. Ham 

To jack off or to beat during a class or session

Kid 1: Did you hear about that kid in third period?
Kid 2: No, why what happened?
Kid 1: I heard he pulled a J. Ham and got caught
Kid 2: Ewww! Gross

J. Ham by Tommie The Tomahawk April 3, 2011