Undertail

the DeviantArt tag that is used to separate NSFW and SFW art from the game/fandom UNDERTALE. The first one of these images was uploaded 4 days after undertale as a game released. I love this shitstain of a fandom I'm in

guy one: yo have you seen what the fandom has done to undertale?
guy two: yea, there's a whole other part called undertail, the art is actually pretty good.
guy one: have you...
guy two:
guy one:

by not william afton December 5, 2020

Undertale-Undertail

This is a difference

Undertale-Undertail

by When_ January 19, 2021

undertaker01

A person that likes to mine a lot and grind and is also insane.

They are also really good at editing

Undertaker01 is a clout chaser

Undertaker01 is a your bet just to expose for clout

Undertaker01 is insane

by Octowisp April 29, 2021

Undertale-main theme

*what a nice song about 2 children dying! it fills you with detemmienation.

your non-existent friend: have listen to the Undertale-main theme
you:yes i have, it's a really nice song about 2 children dying! =)
your non-existent friend: yeah it is!

by Ushi.Gushy.farmer.boi May 21, 2021

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