Top Definition
Rolling down a hill of more than 45 degree incline whilst fucking. If no ejaculation has occurred prior to reaching the bottom, it is NOT a Powysian Break-dance. It is a FAILURE.
‘Many thousands of years ago, it was rumoured that the Powysian Break-dance was performed as a Satanic blood-letting ritual performed by limbless midgets’ - Spinal Tap.
by 535 October 09, 2012
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