The act of excreting into someone's drink, prefereably the drink would be of dark colour, (Coke, Coffee, Tea etc). The result, a rather nutty taste for the victim of the Chocolate Chugger.And a shit moustache.
John: That Peter's a bit of a chocolate chugger ain't he?
Alex: Why?
John: Cos I just shat in his drink!
by J May 3, 2005
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