Iteka 

Iteka describes a person who often or always fail to accomplish simple/mondaine tasks.

Eric is a real sucker. He did an Iteka yesterday and forgot to shave the left side of his face.

Iteka by Bobdasbuilder January 27, 2020

Isekaied

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!

Isekaied by TQRL July 31, 2019

isekai 

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.

isekai by Paperlightning May 5, 2017

Isekai myself 

When you have the wish to die and reborn at a new world with the memories of your past life

Dude, my life sucks. I want to isekai myself and try again.

Isekai myself by TheThyg November 26, 2019

otome isekai 

As an experienced otome isekai enjoyer of several years, I will give a short blurb of this genre.
Otome Isekai is a sub-genre of Isekai where the main character(s) are in some way transported to another world that resembles an otome game.

Isekai means "other world" in Japanese. Isekai stories are those where the protagonist goes to another world. Things like Escaflowne, Sword Art Online, even No-Game No-Life are all forms of Isekai.
Otome means "maiden" and "otome games" are a type of dating-sim visual novel game for girls and women. The goal is to make choices to navigate various story routes to win the hearts of different capture targets.

It is essentially the girly version of the modern shounen isekai that goes in the direction of female wish fulfillment. Instead of stuck in an action game, she's stuck in a romance novel or romance game. It is almost always "died and reborn there" rather than the sort of "stuck" we see in Sword Art Online or the "teleported" we saw in the 90s.
In general, otome isekais contain almost all of the following tropes:
1. The Main Character (MC) has foreknowledge of the events to come.
2. Our Main Character is usually a villainess.
3. Our Main Character almost always wants to avoid the "bad ending."
4. The setting is Lords and Ladies.
5. The Story is about Relationships.
6. It is written for The Female Gaze.

sara: I really wish I could get hit by a truck and isekaied into an otome isekai.
beth: otome isekai?
sara: yeah so I can be surrounded by pretty boys 24/7

otome isekai by __nil May 19, 2021

to isekai

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!

to isekai by Bottleofmarinarasauce January 1, 2021

isekai 

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.

isekai by Hakomako July 14, 2019