Top Definition
A large knot-like lump, that when intoxicated, develops on a drunk individuals forehead. In severe cases, two forenuts might be present, resembling forenut satan!
Oh my god! What happened to your head? Did you hit it on something?

No, its just a forenut! Im totally cheesed! Lets go to the casino!
by Derryll September 15, 2010
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