Kotzo 

When someone comes to your place , drinks all your booze, rock n' rolls all night, and has sex with your mom/sister/girlfriend.

Bob: damn Jeff , you are hungover today huh?
Jeff: Holy shit yea, last night I went to Bill's place and pulled a Kotzo. I think I got his sister pregnant. Gimme a beer.

Kotzo by ZakZakzak October 19, 2012

O kawaii koto 

"How cute" in Japanese.

No one:
Kaguya: O kawaii koto

O kawaii koto by WeabooDolfy125 April 15, 2019

Shinjitsu ni tōtatsu suru koto wa kesshite nai! 

A somehow popular phrase said by Gold Experience Requiem (Giorno Giovanna's requiem stand) after activating it's ability "Return to zero" while Diavolo was erasing time, translates to: "You will never reach truth"
The phrase is usually used only as a reference but sometimes it can be used to hide something that you know from others, jojo fans or not.

Person A: How did you do that?
Person B: Shinjitsu ni tōtatsu suru koto wa kesshite nai!

Shinjitsu ni tōtatsu suru koto wa kesshite nai! by Frosted Fool December 3, 2019

Kotson 

A gay dude who wrestles and has no clue about current or past events.

Hey Kotson, Your wife wants to Netflix and Chill, is that cool with you?

Kotson by Gay Frank January 29, 2016

Kotgockel 

German word used to describe a rare, near-extinct species of feces covered rooster of Upper-Austrian descent. Commonly found at or near music festivals. Not a good dinner guest.
The word itself is commonly used as a term of endearment in Austrian society.

Reich mir doch bitte mal so einen grünbeblechten Schmurgelbären du vermaledeiter Kotgockel.

Kotgockel by Kotgockel June 13, 2022

Daga Kotowaru 

Literally a Jojo reference for everything in the world. Famous quote by Rohan.

だが断る (Japanese)

But I refuse (English)

Anime Villain: "HAHA YOU CANNOT DEFEAT ME IN THIS FORM. I AM GOD. YOU ARE GOING TO DIE

Anime Villain: *does a op attack that destroys the entire continent*

Anime Villain: "HAHA I'M THE RULER OF THE WORLD NOW!!"

Main Character: "DAGA KOTOWARU*

Anime Villain: "NANI?!"

Daga Kotowaru by wholesome_retard May 2, 2020

O kawaii koto 

The Japanese version of ‘how cute’. The character Kaguya Shinomiya uses this a lot in the manga called Kaguya Wants to be Confessed to, otherwise known as Kaguya-Sama: Love is War.

It is Shirogane Miyuki’s (another character) least favorite saying of hers.

Kaguya: O kawaii koto.
Prez/Shirogane: AHHHHHHHHH

O kawaii koto by Mmgh August 6, 2019