The act of shotgunning a beer whilst urinating - oft completed outdoors. Can be completed as a double or triple when two or three beers, respectively are shotgunned during a single stream of urine.
Hey Charles, ya bitch, I've gotta take a piss let's go do a pee gun - try to avoid the public urination charge this time - dick.
by CharlesIsMyBitch September 7, 2010
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