Top Definition
A slightly abbreviated way of saying "for sure." Used in all contexts where "for sure" might be used.
Guy: Hey man, I heard that chick's ham wallet was vajazzled. Would you still hit that?

Man: Fo su!
ayon kay Diesel7777777 ika-25 ng Marso, 2010

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Someone with chinese eyes and a lot of freckles.
1. "Oh man, look that guy, is so fosu"
ayon kay Camel cool ika-03 ng Mayo, 2010

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Acronym for Fear of Sobering Up. Someone who has FOSU may begin their drinking with Bloody Mary's over breakfast just to ensure they're never sober.

People suffering from FOSU often use boring people as a reason to get drunk in the first place.
Reginald: Dave, I'm hungover.
Dave: Hair of the dog, mate.

Reginald: Yeah, fair enough... Can you fix me a Bloody Mary or a Gin and Tonic? I don't wanna be sober around these other asshats.
Dave: Bro, you've got a hardcore case of FOSU.

Reginald: Yeah, but have you been trapped in a conversation with Betty or Rachael recently? It's like listening to an orchestra of cats.
ayon kay Springbok27 ika-09 ng Enero, 2011

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.

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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

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The Urban Dictionary T-Shirt

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Acronym for Fly Over State University, any large public university located in the uninteresting heartland of the United States.
"Go FOSU, beat FOSU!"
ayon kay Master of the Boneyard ika-10 ng Mayo, 2016

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
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