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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.
FOSU by Springbok27 January 9, 2011
Word of the Day on September 10, 2013
Words you can keep
Someone with chinese eyes and a lot of freckles.
1. "Oh man, look that guy, is so fosu"
Fosu by Camel cool May 3, 2010
Related Words
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.
fosu by TheGoldfinch July 1, 2020
Acronym for Fly Over State University, any large public university located in the uninteresting heartland of the United States.
"Go FOSU, beat FOSU!"
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!
fo su by Diesel7777777 March 25, 2010
Stands for fear of showing up late. When someone has anxiety about being late to things.
I have to leave twenty minutes early to get to class because I have fosul.
Fosul by Kikki Evelyn September 17, 2019
person 1 "are you coming out 2nite"
person 2 "fosure"
person 1 "8 o'clock then"
fosure by jazz_spaulding January 13, 2009
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