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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!
by Diesel7777777 March 25, 2010
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May 20 Word of the Day
A cryptocurrency of little to no value, usually a late-comer to the Bitcoin craze, a copycat cryptocurrency.
There are so many shitcoins these days, just stick to the classics.
This new b1tc01n crypto is just another shitcoin.
by Tatsuman February 18, 2018
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2
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.
by Springbok27 January 09, 2011
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4
The proper way of writing "for sure." Pronounced foh-shoh.

Etemology: For sure -> fo. su. -> fosu
Person 1: Is Maddy wrong about the correct way to shorten "for sure"?
Person 2: Oh, fosu.
by TheGoldfinch July 01, 2020
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5
Acronym for Fly Over State University, any large public university located in the uninteresting heartland of the United States.
"Go FOSU, beat FOSU!"
by Master of the Boneyard January 27, 2016
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