Top Definition
when you are in such a confined bathroom (or if you are resourceful) that you are able to have a poo, a wank and a shower all at the same time.

poo + shower = power
shower + wank = shank

note: for optimum use of the word, all must culminate at the exact same moment, possibly with the shower ending just later for ease.

i had a power shank.
by moose_juice June 29, 2008
7 Words related to power shank

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