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The ratio of thigh to butt on a woman; easily viewable by a visible "crease" between the thigh and butt. The thigh to butt ratio is larger based on the length of the crease.
Steve to Tim: Damn, look at that girl's thigh butt. I would just love to put my hand in that crease...or maybe just swipe my ATM card.
by damadalpha January 30, 2009
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