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When receiving a Blumpkin, before both shitting and busting, the receiver quickly stands up and turns around, mashing his cheeks into the face of the giver, thus shitting all over there face.
"I was just giving my boyfriend a blumpkin, and he totally shit all over my face! I hate beef surprises."

"Be careful when giving your man a blumpkin, he may give you a beef surprise instead."
by TacoTuesday12 June 15, 2014
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