the sound of the dude's balls smacking when he is smashing a girl from behind.
David: James why do always watch lesbian porn?! Jeez play some regular porn for once man

James: Nah fam I hate the sound of balls smacks everytime I watch regular porn, makes me feel gay as fuck tbh lol
by jeezybreezy December 2, 2015
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An sexual act involving wanking and smacking/slapping of the mans testicles
Have u ever tried ball smacking? Just as u cum, ur balls are smacked its brilliant, but u should see the swelling
by mitch00uk April 8, 2015
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When someone places their ball sac on Melisa Sorger's head.
by kcirtap naroh December 2, 2003
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when you are so bored at home that smacking your own balls would be considered fun
Dude1: hey man what r u doing?
Dude2: nothing much bro just smacking balls
Dude1: that bored hey? come out tonight if you want

abbreviation: smackin balls
by Elselvor July 10, 2012
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