Using one's own urine stream to remove fecal residue from a toilet bowl left by a previous depositor, commonly using the maximum possible force with which one can expel urine.
Male 1: Dude, you've been drinking coffee like crazy!
Male 2: I know, the janitor is on strike and I gotta do some pissher washing.
Male 2: I know, the janitor is on strike and I gotta do some pissher washing.
by ilovechicclete July 20, 2011
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