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Bong arse is an uncontrollable bad case of diarrhea that feels as if bong water is flowing like a tap out of your ass.

Similar to mud butt

Treatment: po chai vials. lots of them. from your local asian grocer
After drinking a bottle of ouzo and eating midnight yeeros, I got a severe case of bong arse.
by jay-fo March 23, 2014
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