The act of masturbation while simultaneously defocating then calling attention to ones self, with the aim being to finish both activities before being caught.See Dangerwank. The word Dangershank is adapted from dangerwank, but with the words Shit and Wank being combined to create the shank.
"The Dangershank i had last night was joke, barely got my kegs up when my mum came in"
by Bentley January 29, 2006
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