Osu Tatakae Ouendan

Also known as simply, "Ouendan", Osu Tatakae Ouendan is a 2005 game originally made for Nintendo's 3DS, but later got reprogrammed by some random Australian guy named Dean "peppy" Herbert. It has a storyline, had some crappy animation, but was adapted in 2007 to a PC port, where you can click with a keyboard and move your mouse.

"Bro I've been getting into 'Osu Tatakae Ouendan'! It's pretty fun ngl."
shige: "Hmm."

by Koroe December 29, 2021

osu!

That circle clicking rhythm game that also an aiming game. Based on Osu! Tatakae! Ouendan. Probably the most popular rhythm game along with Guitar Hero and DDR. Spelled with a lowercase o and an exclamation mark at the end.

A: "What do you just play?"

B: "This game I just know. It's called Osu."
A: "IT'S SPELLED osu! U IDIOT TCVBVJGY..."
B: "Haha circle goes brrrrrrrrrrrr..."

by EX_ February 25, 2021

osu!catch

A mode in the popular video game osu! where you catch falling fruits.

Someone: Wanna Play Osu With Me?
Someone Else: Sure, But Lets Play osu!catch

by realreasonsindia May 19, 2025

osu!taiko

osu!taiko is a gamemode of the popular rhythm game osu!

The gamemode is no really is not really that popular like standard mode.

"Yesterday I played a osu!taiko tournament!"

by Hkefp August 6, 2022

pulling an osu! NoFail-er

When a beginner osu! player says they can play high star maps after a few days of experience, but they had NoFail(NF) on all along, shocking experienced players and temporarily make them regret ever trying.

Beginner: Hey bro, I just started playing osu! and it seems really fun! I can kind of play 6-star maps right now.
Pro: Bruh.
Beginner: Yeah, NoFail is pretty nice.
Pro: Ah yes, they just jabaited me by pulling an osu! NoFail-er.

by Square_One376 January 2, 2021

Osue cheese

It’s smells like blue cheese but no it’s just Oscar’s dick cheese and it’s even blue

Osue cheese smells so bad and is it always blue

by Ravengaspabigdick June 6, 2023

Osu! Day

Osu day is on July 27th, this is because in America, along with other places, the date shows up as 7/27
727 is memorable because of a player called cookiezi who set a play on a map called Blue Zenith,
that score was 727PP, which then led to the community saying:

727 WYSI

WYSI Bro, that's crazy. Still looking forward to Osu! Day.

by Its Kungfu July 27, 2022