Literally "You're already dead" in japanese. A phrase used by the character "Kenshiro" in the manga/anime "Fist of The North Star", also know as "Hokuto no Ken" in Japan. This phrase is very well known by the the otakus/weebs(anime/manga fans) because is very common that a otaku/weeb watch the original dub of an anime.
Ha! Omae wa mou shindeiru.
by SonikkuPlay March 14, 2020
A weeabo's way of deflecting any and all criticism and hate towards them.
Normie: "Your favourite anime is gay."
Weeabo: "Omae wa mou shindeiru."
Normie: "NANI?!"
*the entire fucking world implodes*
by Depressed Nugget August 20, 2019
A meme that makes me wanna say it in the bathroom at school. It means “You are already dead” and then the other dude says “NANI?!” Which means “WHAT?!” In Japanese.
Me yells in echoey bathroom at school: Omae wa mou shindeiru!
A Sevie: NANI?!
A Frog: REEeeeEeEeeeeeeeeeeeEeeE!!!!!
by SharkPlayz SDF September 1, 2019
Omae wa mou shindeiru is a dead meme from fist of the north star. If you say it your opponent dies immediatly
Me: Omae wa mou shindeiru My friend: N A N I????????
by N A N I October 22, 2018
Japanese for, "You don't even know you are already dead." Literally meaning, "You are already dead." Most famous for being in Hokuto No Ken (Fist Of The North Star in English) when the main character (Kenshiro) hits an enime's pressure points to explode them from inside and says it to cause the death.
Ken: Omae wa mou shindeiru.
Bandit: Nani? (What) (Head Explodes)
by Serbia is Awsome May 26, 2021