Umu! 

This word used by Nero Claudius in Fate/Extra series means "I'm the best fucking saber".

Artoria - I'm best saber.

Nero - Umu!

Umu! by ミラー June 5, 2019

umu 

It's an archaic Japanese interjection meaning 'yea', 'uh huh'. In modern Japanese fiction it's used similar to いい (ii) in that it can be used as an affirmative or positive ("Yes, that's good"), noncommittally or resignedly ("fine, alright") or dismissively ("Enough!")

"Do you want to play shougi"?
"Umu, I sure do! Where shall we play?"

umu by enkephalin07 April 27, 2021

umu 

The word umu is another word for agreeing with someone, like the word "yes" or "absolutely" in a cut-er way.

Person 1: Im telling you, the people will love the maid costume!
Person 2: So you are curtain this plan will work?
Persson 1: Yes, Im positive. Let´s get to work!
Person 2: UMU!

umu by Weeberuu December 23, 2018

umu 

A term used to describe the feeling of becoming saddened by something that would otherwise make an individual uwu. When something is so cute that you uwu in sadness

Acceptable use: ironically

Similar terms: úmù, ùmú, or The Big Sad™

Person 1: Wow it's barely been a year and Stray Kids has already started growing up before our own eyes
Person 2: oof you're right umu

Person 1: Did you see Baekhyun's ig live update?
Person 2: uhh yes its big ÚMÙ hours now boys
Person 1: wow rt I'm crying

umu by yeontan November 13, 2018

ūmū 

ūmū is a term that was made from uwu but a cursed upside down version. Not meaning dark , but more of a assertive “ mm okay. “ type of face. Not a popular emote-con yet , but soon will be.

“ nah idk about dat fam ūmū “
“ ūmū no i dont- “

ūmū by wren:b October 18, 2020

umu 

Better than uwu

Nero Claudius:umu!

umu by fumo nicedo May 12, 2022

Umu 

A person whose head is so far up his/her own arse their head has sprouted once again from his/her neck

person #1: i fucking hate that Jack Graves
person #2: i know, he's such a fucking Umu!
person #1: damn straight!

Umu by Roo Barb January 19, 2009