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Any large burger containing multiple beef patties, bacon strips, and excessive amounts of cheese, ie, Wendy's Baconator, Burger King's Triple Stacker, Rally's/Checkers' Double Big Buford, and pretty much any Hardees Burger. Guaranteed to make you a FAT FUCK, hence the name!
Hey bro, how about a Fatfuckinator? No? Really man? Ok bro, that's cool.
by Roland Daggett October 24, 2007