1 definition by Stefdalcheesecake

The reverse of Wank Bank.

It is the action of having a wank once you realise that you're bankrupt.
Guy 1: Shit Lehman, what are you and your brothers doing?
Guy 2: Nothing man. Just had a Bank Wank, we're bankrupt.
by Stefdalcheesecake July 3, 2013
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