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Butrobics

Excercise for your bottom. Often done by walking long distances and going all day while clenching your Bumb cheeks.

The effect is, (after extensive butrobic programmes and devotion) a rock hard ass.
Jack: Fresh from 2 hours of BUTROBICS, i give you, MY ASS!

(Moonie)
by Jody Harris September 1, 2008
mugGet the Butrobicsmug.

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