Someone who is not fat, but eats a ton. They should be morbidly obese because of how much food they eat, but are somehow miraculously skinny.
Kojo eats a box of donuts after every meal. How is he not obese?! What a fatty.
by Kornelius Jonesworth February 18, 2013

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A friendly way to get the attention of a friend. In case you have to call you friend over that is what you would use.
Hey Fatty! Get over here!
by Jennuhfuh January 03, 2006

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awesome and cool while being extraordinarily different. big and sweet
I gotta take a fatty shit!
That's a fatty wave.... SWEET!
by Miles Bolkin September 03, 2004

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Someone who is obese or overweight. It can also be used to insult the non-obese/overweight when insults are on short supply.
Jake; he's a fatty.
by Ryan April 06, 2004

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a big butt
you got a FATTY girl!
by babyboo April 15, 2003

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Another name for a blow job. (Said mostly in New York)
"Bro, that girl gave me a fatty!"
by DannyUCF May 28, 2007

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a really fat dude, ppl that you don't like, someone you want to fight.
What FATTY?!? Wanna box?
by leslie March 03, 2005

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The Urban Dictionary T-Shirt

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Unattractive people who will never grace covers of magazines ( except fat people magazines) nor be professional athletes.
Look at that hot, voluptuous fat stripper. "Hey fatty, bend over a little more and I'll spot you a 10".
by Dick Splash November 10, 2003

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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