Top Definition
Sitting around eating, watching tv, playing video games, messing around on the computer, and/or listening to music (if you aren't going to dance or move much).
"What'd you do all day?" "Oh I was just being fat."

"Did you start your essay yet?" "No, I'm being fat."
by Fagitized March 19, 2006

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being as a fat person would be, and sometimes being an all around loser. other times it can be used as a reason on why something is wrong.
eating like you have never ate before, doing things that are stupid that nobody think is funny or can be used like this: "well the car doesnt work because its being fat" or "no you cant do (insert something here) because you are being fat"

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

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

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

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