atsum 

Atsum means triable student. People trust them and love them.

Atsum found an ID and returned it to the police.

atsum by thatonesparklebixh May 26, 2021

Atsushi 

The other definitions r trash lol he ain’t a cinnamon roll or baby he’s a cute badass hot boy whos just trying his best.

Person 1: Atsushi is an uwu cinnamon roll baby hes my little bean.

Person 2: No he’s a jerk who murders and is super mean to Akutagawa.

Person 3: y’all are both dumb sure he’s not perfect but he tries his best to be a good person. He’s a very relatable and well written MC

Atsushi by Bungougaydogs March 23, 2021

Kamina Assumption 

noun; an assumption that any situation or problem, even if it is logically insurmountable, can be resolved by sheer passion or force of will.

This phrase was inspired by the character Kamina from the anime Tengen Toppa Gurren Lagann, who has a tendency to conquer insurmountable obstacles by his fiery, manly passion; a force that is approximately equal to the red-hot plasma of a thousand suns molded into the shape of mustangs and panthers.

Kevin: Look, I know that we only have half a tank of gas and no cash, but it's my dream to finish this cross-country road trip and I know we'll do it somehow!

Me: Considering that we're still in Wyoming, I'd say you're making a dangerous Kamina Assumption.

Kamina Assumption by PyrgusMalvae January 18, 2010

Sakurai Atsushi

The sexiest J-rock singer alive. Has the vocal abilities of an angel, the looks of a god, the sexual appeal of 34567898 of the world's hottest people COMBINED. His hair is like the soft caressing wind at night. His eyes are like the sun; blazing into your soul. He is perfect~

Person 1: Who's that sexy Japanese guy?

Person 2: Oh, him?? Bro, that's Sakurai Atsushi.

Sakurai Atsushi by himynameisyourmom. June 18, 2011

Atsushi 

hottest mf in the world. I always say ´´el Atsushi que se gastan´´ cuz yeah, he is hot n cute mixed together, thanks for coming to my TedTalk

- yes
- no
- why
- atsushi says no

Atsushi by Bokutosimp.net November 8, 2020

arkham alsume

one of the things that slowly drove the r/batmanarkham subreddit to the brink of insanity
(im actually not sure if this was the start of it but it was talked about that being the cause of the madness)

"Thoughts about Arkham Alsume?"
minor spelling mistake before disaster

arkham alsume by kell incognita April 17, 2023

Atsumu 

the sexiest, hottest, man in history. he's so fucking hot but he's also fucking stupid and dumb and a little bit brain dead but hes still sexy so lol

"Hey do you know Miya Atsumu?"
"Oh yeah I'm pretty sure that dude has a furry kink"

Atsumu by kiiyoomii January 3, 2021