monkey piss
The last sip at the bottom of a beer can or bottle. People usually dump it out instead of drinking it because it usually consists of backwash and warm beer.
Guy 1: Dude, why are you wasting that beer?
Guy 2: I'm not man. This is just the monkey piss.
Guy 1: Oh, my bad.
Guy 2: I'm not man. This is just the monkey piss.
Guy 1: Oh, my bad.
monkey piss by Dave May 3, 2005
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