1 definition by SnakeFist

Top Definition
When one guy backhands another guy in the balls with such force that it causes extreme pain. This is done for fun and for laughs as to watch the person in major pain on there knees holding there balls. It's not funny when done to you but it's funny as hell when done to someone else.
I ball slapped tom so hard that that he was on his knees for 20 minutes and i laughed so hard at his pain.
by SnakeFist April 10, 2010

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