Top Definition
When you drink like you're in a fraternity yet you're not because you're either too old or no longer/not in college
Dude, we got so fratnasty at last night's party. I took down a beer bong and shot gunned beers all night.
by Almarock April 01, 2013

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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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).

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Dirty, deplorable, disgusting condition; the lack of cleanliness and overabundance of filth often found in a college fraternity house.
"When I saw how much old mac & cheese and other greasy funk was matted on that frat-nasty oven, I literally gagged."
by juleskills October 27, 2010

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

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