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When you try so hard to squeak out a fart, then unexpectedly anal leakage occurs.
Dude, get a tissue. I just Hershey-ed myself!
by Gabby Jay December 10, 2003
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2
When you fart so hard that a little poo kisses your underwear.
"Wow" that was loud and sounded wet... Was that a Hershey Fart?
by Mokeyfrog September 17, 2014
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