Top Definition
A painful and often stinky shit you take the next day after a night of drinking.
Bob: Dude I'm having the worst beer farts after yesterday...you wish you could smell them.

Bill: No I don't, but holy shit man... me too, I just took the worst Demonbaby.
by BillyJoeBobJohnson April 19, 2009
5 Words related to Demonbaby

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