Top Definition
(n., pl.) The multitude of women that can be found on the Internet from either personal sites or chat rooms. These women can be easily detected by their obesity and sub-average physical attractiveness.
Yeah, I tried looking for a woman on those Internet personal sites, but all I came up with were a bunch of fucking fat-nasties.
by K-Von March 14, 2005

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An incredibly loud and disgusting fart. This title is reserved for the most foul, rotten-smelling farts.
I was in the elevator and some jackass cracked off a fat nasty.
by Beatsters March 15, 2010

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A fat and nasty person.
Person 1: OMG shes fucking fat
Person 2: What a fucking fat-nasty
by meh7845 August 29, 2006

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adj. The simultaneous feelings of disgust and contentment that a person feels after having been so hungry that said person stuffs his or herself so that they can barely breath without exploding.
I was so hungry during class, but after I went to Philbrook and ate everything in sight I felt wicked fat-nasty.
by something good February 10, 2005

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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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A disgusting greasy fat girl.
I heard Bob stuck his butter pole in that Fat Nasty.
by Branpa October 23, 2008

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Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt