Fatty McFatso 

See Fatty McFat

That Fatty McFatso is so fat that he was really fat!

Fatty McFatso by Baz November 30, 2003

Fatty McFatsofat 

(Noun) An individual whose physique becomes enlarged and grotesque as a result of consuming too much McDonald's food. This phenomenon, albeit formerly unnamed, gained national attention and was popularized by the documentury "Super Size Me."

Fatty McFatsofat at the Drive-Thru: "I'll have two Big Macs, no wait, make that eight Big Macs. And... throw in a batch of fries, you know, a whole basket full, however many large-sized fries that is... One McRib, three of this little cheeseburgers, a twenty-piece Chicken McNuggets... and..."

Fatty McFatsofat by jpsi December 24, 2008