Top definition
simply, an action where you flex your bum cheeks and somehow figure out how to play a fiddle with it.
"Oh my god, that guy is such a good bumfiddler!"

"Yeah look at his bootie flex that fiddle in such a violent way!"
by giannapranker123 July 11, 2009
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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