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 22, 2023

Undertale Fangirl

An Undertale fangirl is someone who likes a character a little too much...

fangirls used to say: "Wow! That Sans guy is soo hot!"
Fangirls now: "Fuck me 'Daddy' 'till my face falls off!!"

"That Stacy girl is such an undertale fangirl."

by bettyXufsans May 1, 2020

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 9, 2019

undertale shitstain

a fag who has sans as their picture and/or name and might roleplay in the comment section

underfellsans1234: hey papy what do you want to do
me: well listen here you fuckin undertale shitstain

by Chillyconmor March 26, 2017

Undertale Fan

Someone who has dedicated most of their time to celebrate a game who's community has became worthless and toxic and filled with terrible fan games. Moreover, they get off on porn with goats, robots and incestual skeletons. They attract unnecessary attention if you are friends with them, and have no sense of comedy. They have an infintisemal amount of AUs, all of which are completely stupid and blatant copies of each other. Finally, they constantly listen to remixes of the same exact song, based only on the fact it is intended for a different AU - the only difference, in fact, is the pitch or volume (and cringiness) of the 'song'.

Guy 1: I was with some of my mates and this weird ass Undertale Fan came up and started talking about this goat mom or something
Guy 2: Whoa, that's really creepy. You should report them or something.

by A magical British persona March 14, 2017

Jerry (Undertale)

The exact opposite of an IRL Jerry

Jerry (Undertale) at 5 o'clock. If we hurry, we can ditch him!

by DatGuy584 December 28, 2016

Undertale Community

the one community that makes you want to drink nail polish. it takes a psychotic flower, and turns it into porn that makes no sense. it involves goats having sex with skeletons, skeletons having sex with robots, incest, necrophilia, and tentacle porn if you accidentally stumble on porn of it.

in the afterlife...
dead guy 1: so how did you die?
dead guy 2: hit by a train, you?
dead guy 1: i committed suicide by drinking nail polish remover mixed with bleach.

dead guy 2: why?
dead guy 1:because i saw undertale porn in a supposedly child friendly undertale community.
dead guy 2: oh god, i had it easy. and i was in a hospital for 6 months in complete agony.

by doctor0010 August 20, 2016