Underage Adult

A child who is mentally, physically or emotionally mature. Or a grown-up, legally of age who is not physically, emotionally or mentally mature.

I was an underage adult when I asked a 40 year old man for a kiss.

by Netta Y January 10, 2022

Undertale effect

A process in which an indie project (either show or game) grows so big to the point where people start hating it due to how big it is.

“It has barely been a week and Digital Circus is already suffering from the Undertale effect!”

by Redsparrow09 October 21, 2023

An Undertale

A piece of media that is popular enough for fans to reference it constantly but not popular enough for everybody to understand it

Fred: Dude, you know nothing, do you?
Dean: You know nothing Jon Snow.
Fred: I haven't watched Game of Thrones yet. Stop referencing it. It's an Undertale

by Kawaiicorn October 12, 2016

Sans Undertale

has no Dick don't date, really funny though, don't play games with him., you will rage.

Sans Undertale fuck him he made me rage

by kobinguy December 8, 2019

I am now sans undertale

A rare occurrence of a living creature changing its eye color (only the left one) to blue or putting a blue object in front of their eye.

The meme is popular thanks to its simplicity: the "Sans" NPC in the game of "Undertale" can change one of his eyeballs to become blue.

"Ayo bruh why your eye blue???"
"I am now sans undertale"
"Haha funny joke now let's go visit the hospital bro..."

by lexent September 25, 2021

Twitter femboy Undertale

A quote originating from the steam reviews of the game "Omori" describe it as such. Thus the name Twitter femboy Undertale is a second, non official name for Omori.

Person 1: "Ayo have you played Omori? Better not have."
Person 2: "You mean Twitter femboy Undertale?"

by SuburbanSociopath November 1, 2021

undertale

Undertale is a game made by Toby Fox, it's an RPG game with great soundtrack, locations and bosses.
If you haven't, play it.
Three routes, pacifist, genocide and neutral.
Huge fandom.

Bill:Dude, you should play undertale, It's a great game.
Josh:No. Never.
Bill:GET OVER HERE
Josh:OH GOD RUN!

by UnderLoverCall911 July 30, 2016