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When you are sitting down and the fart goes up between your leg and your nut and tickles your leg.
I did one just then and I thought you should know about it
by Leigh Kemp March 21, 2004
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2
When a man has an orgasm at the same time he shits the bed.
Jan broke up with Matt after he busted a nutfart on her last wedneaday.
by BLACKHEATHER December 15, 2018
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