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

osu! by Djchu March 21, 2019

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!

osu! by woolf🦊 December 13, 2021

osu! 

An incredibly hard rhythm game which involves clicking on circles, dragging your mouse across tubes, and spinning your mouse rapidly across the screen.

Playing any map above 5 star difficulty is a great way to get carpal tunnel.

To this day I have no idea how people are able to clear “The Big Black” in osu! without feeling extremely lightheaded and then passing out.

osu! by nlolhere March 1, 2021

osu! 

that rhythm game where you click circles
"instead of giving you better accuracy it just makes you better at the game"

-tokaku

person 1: hey do you know "osu!"?
person 2: yes i play with mouse
person 1: i play with drawing tablet
person 2: *gasps*

osu! by quinetn January 8, 2022

osu! 

Osu! is a rhythm game primarily developed, published and created by Dean "peppy" Herbert. Originally released for Microsoft Windows on September 16, 2007, osu! is a game where all of the sweaty, weeb neckbeards can band together to click circles to the beat of anime openings including, but not limited to, CBCC.

Player 1: Dude, my waifu is in osu!
Player 2: Dude, no firetrucking way!
Player 1: Yeah, we met when I showed her my CBCC play!

osu! by nicholasmize December 2, 2019

Osu! 

Osu: a better guitar hero but with a piano and clicking also good when there a Domestic Dispute (DD) between your mom and dad and your too lazy to call the cops nor wait to enact Plan GN-PF since PW-hub or Paperwork hub isn't fun to do for an Incident report for a Dispute over Toilet paper

Yea I played Osu! while my parents were fighting since I didn't want to make an Incident report for enaction my policia federal/Guardia Nacional ( federal police / national guard) plan

Osu! by Hk416 March 3, 2021

OSU! 

OSU! is an open source music rhythm game developed by Dean Herbert at 2007. The game consists of four game modes: osu!standard, a circle clicking simulator; osu!taiko, a drumming emulator; osu!catch, a fruit salad catcher; and osu!mania, a key smashing synthesizer. For more info, you can visit: osu.ppy.sh

I heard that OSU! has become more and more popular.

OSU! by Jin6000 March 18, 2019