Meaning: "Another world"
usually referring to Japanese stories (anime, manga, light novels or web novels) which involve the main character being transported into another world via either reincarnation, summoning, or a god transmigrating them.
the setting is usually but not always, medieval fantasy with swords and magic.
Did you read that isekai manga?
yeah dude but it was so freaking boring, the Main character was just fucking around with his harem...
that's the good part.
by Paperlightning May 5, 2017
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A Japanese genre used in anime/manga/light novel/web novel.
It is about how main characters find themselves in a different world or a different timeline.
A: Nowadays there are lots of isekai being adapted into anime.
B: Japanese must really hate their lives huh.
by Hakomako July 14, 2019
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The act of being run over by a truck and being reborn in another world. A common action that happens in Anime.
Jeff: Yoo have you heard of the new Anime "Konosuba"?
Me: Does the main character get Isekaied?
Jeff: OFC he does, it's an Isekai!
by TQRL July 31, 2019
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The act of sending someone to another world using particular ways, often by running them over and/or stabbing them.
Sometimes the victims of this act just get sent to the world without dying and are often seen in anime.
Did you see Star Wars episode 3?
Yeah, my favorite part is when Anakin chooses to isekai the younglings.
We have so much in common!
by Bottleofmarinarasauce January 1, 2021
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An anime genre where a weeb loser gets hit by a fucking truck and has to defeat evil demon nigga while big booty bitches follow him around.
My friend : " Damm that isekai was so great! "
Me : " No. "
by PumpKineTick August 7, 2020
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A religion in which you don't believe in God but in reincarnation. If you die in your world instead of going to heaven or hell you will be reincarnated as the protagonist inside a Isekai World.
Person 1: Did you hear about isekaiism?
Person 2: Yeah I did, apparently you get reincarnated if you die.
by Ukuleli February 28, 2019
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Anime where generic protagonist with no personality is sent magically to an alternate universe and stuff, usually by being hit by a truck, just to be greeted by an army of women crazy for him for the sole reason od fulfilling weeb fantasies.
Joe: I just watched an anime with a protagonist so shallow I could fill the gaps with my personality
Wendy: oh, so an Isekai
Joe: I guess so
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