Degratory term for a fat person. Person is generally fat. Often used without having literal meaning.
That man is such a Fatty McFat, he wouldn't even move his legs in the cinema!
by Baz December 1, 2003
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A huge, large nasty person. They are probably smelly and greasy, disgusting and generally repulsive.
Damn, Look at that whore Tauni, She turned into such a Fatty McFat after I dumped her slutty ass. She slept with every fool on the Winco night crew.
by Rob Lussier November 7, 2006
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A huge, large nasty person. They are probably smelly and greasy, disgusting and generally repulsive.
Damn, Look at that whore Tauni, She turned into such a Fatty McFat after I dumped her slutty ass. She slept with every fool on the Winco night crew.
by Rob Lussier November 2, 2006
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Someone who got fat by eating way too much fast food and doing nothing but sitting on their fat butts.
Fatty McFat Fat stole my cheescake, then he ate my statue of Hayato Kanzaki!
by RatchetBoo April 28, 2003
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1) used to insult someone who may be fat

2) used to insult someone because you can't seem to think of a better insult than "Fatty McFat Fat"
Hey look, There's Fatty McFat Fat! Freaking Fatty!
by sowutifimuglt,ugly! January 19, 2007
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Used as a disparaging term for an obese individual, or as a humorous nickname given to someone with little or no body fat.
Stop blocking traffic, Fatty McFat Fat!
by Troy February 5, 2003
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somebody who has more rolls than any sumo wrestler alive and leaves a trail of fat juice while walking down a path after eating and eating more food then one can think of. to be at this stage, one must complete 4 courses of all fast food chains for 3 months straight, tubs of miracle whip, and chocolate dipped everything.

no exercise or concentration needed.
yo, i was walking through wal-mart when this fatty mcfat fat blocked me in the aisle and i had to hold my breath and suck in to get by him... i felt like i was in a blowhole.
by fabby March 14, 2008
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