What is Butrobics?
1.
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)
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Random Words:
1.
The bunching up of a zipper so it appears as if you have an erection protruding from your jacket.
Jim had a jacket boner and we laughed..