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The intense craving and/or frequent longing for greasy fast-food. The desire is often brought on by late-night intoxication, but may also be triggered by intense hunger or even a mere momentary lapse of nutritional judgement. Condition almost always resulting in a deep sense of regret as well as an uncomfortable interruption in gastrointestinal function.

Similar usage as "Sweet Tooth"
Bro 1: "Hey bro, pull into McDonald's, I'm going to go H.A.M."
Bro 2: "You've got a grease tooth havent you. Your going to feel like a turd after this."
Bro 1: "Whatever, I'll take a #4 with extra mayo"
by MrRumpus December 13, 2012
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