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Undertale Effect

When a video game becomes popularly hated due to its fandom as opposed to the game itself. Part of cringe culture. Often results in a hatewagon.

"Let's play Fortnite!"
"Eugh, why Fortnite? That game sucks. The community is filled with whining kids."
"Didn't you have the same reaction to Undertale? It was a good game but the community ruined it? Isn't most Fortnite hate just another Undertale effect?"

by JTIG22 August 31, 2018


Undertale Community

The perfect place to find all your favorite Undertale characters making out.

Did you see that great Toriel X Sans image in the Undertale Community? No, I only saw the "You're gonna have a bad time meme.

by pppom January 23, 2016


Undertale Multiplayer

A cool Undertale FanGame which has a Discord server where you ask for the game and get banned.

Guy: Hey, when is the Undertale Multiplayer coming out?
Mod: get banned lol

by EDolphin March 03, 2021


Commit a undertale

Basically jumping off of a ledge to your death

I swear if Sans gets into smash, I will commit a undertale

by WilliamXu210 August 29, 2022


Sans Undertale

A character from Undertale, usually worshipped as a god. Sans is a skeleton.

doug: oh man i sure do love sans undertale
josh: me too doug
doug:im glad we share interests josh
josh: yes were very good friends

by Sand Undertlae December 08, 2020


Sans undertale

A skeleton based character from the indie video game Undertale, developed by Toby Fox, that is apparently a meme.

“Sans undertale is highly popular amongst many Undertale fan girls”

by Kioki Isumie July 13, 2019


Undertale Fanbase

Young lunatics that have way too much time to draw rule 34 of their favorite undertale characters. They don't go outside much and skip school to masturbate to their trash undertale porn.

Guy : I saw someone from the Undertale Fanbase outside, unbelievable.

by Demofisher January 02, 2022