Osu

osu! is a freeware rhythm game originally for Microsoft Windows. It is written in C# on the .NET Framework. The game has also been ported to Mac OS X, iOS, and Android. Its gameplay is based on commercial titles including Osu! Tatakae! Ouendan, Elite Beat Agents, Taiko no Tatsujin, beatmania IIDX, O2Jam, and DJMax.

Despite the stupidity stupidity of some; it is pronounced Oh-Sue. Not OOS.
A: Have you heard that game, osu?

M: Yeah it's like guitar hero except you pick the songs.

A: Wow sounds cool. How do I say it?

M: Oh-Sue.
by Oh-Sue September 06, 2014
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Osu

(usually pronounced: oos )

A term used in karate or mixed martial arts schools meaning yes, hello, goodbye, and I understand. A general affirmative.
Teacher: Is everybody ready?
Students: Osu!
Teacher: Begin!
by Guildenstern14 November 13, 2009
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Osu

A rhythm game by Dean Herbert where you click circles. It's also a game for problematic people and Anime Weaboos
Osu has not only wasted my brain cells, but it also caused me to have an addiction to anime and no friends. I can no longer call myself a normie.
by WebooTrash April 06, 2019
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Osu

a rythm game for weebs, otakus, hikikomoris and lolicons which want their favourite loli anime opening to be played by a random stranger. Other definitions for Osu are ; cancer, aid to suicide or a reason for suicide
Man i really wanna die dude...
I know man i play osu too
by TheOsuGod November 16, 2017
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osu!

A rhythm game capable of making you feel all stages of grief at once.
The gameplay mechanics involve clicking circles to the beat of the music, and once you enter 4* difficulties you will start to develop tendonitis, RSI and carpal tunnel at the same time.
Me: I just took part in an osu! Tournament.
Friend: cool! How'd it go?
Me: well, I can't feel my wrists and also I'm in an ambulance
by Djchu March 21, 2019
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osu

A term used in Karate

or

A popular rhythm game.
1. Fighter 1: Are you ready to fight?
Fighter 2: Osu!
2. Tom: What are you doing Simon?
Simon: Playing a game. It's called osu. Wanna try it?
by 123adi May 13, 2016
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osu!

Ohio State University!
Probably not the infamous rhythm game that makes you easily get the carpal tunnel and other wrist and hand problems
Fren: Hey, wanna play osu?
Me: uhhh... sorry! I'll pass, I can't play in osu rn, I'm having a test in osu!
by woolf🦊 December 14, 2021
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