Gaster Asster
The gluteus maximus of Gaster from the game undertale . used as a joke to express sexual attraction towards the character.
Gaster Asster by songtune May 20, 2016
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Gaster Blaster
A sexual act where one person chugs an entire gallon of milk while giving oral sex. Then vomits the milk at high velocity at their partner's penis.
Girl: I'm just about ready to use my ultimate move.
Guy: Ok, do it babe.
Girl: ACTIVATE: GASTER BLASTER
*Girl proceeds to do the action of Gaster Blasting*
Guy: Ok, do it babe.
Girl: ACTIVATE: GASTER BLASTER
*Girl proceeds to do the action of Gaster Blasting*
Gaster Blaster by VolcanoKaiser November 19, 2019
Related Words
Gaster Effect
The Gaster Effect (Undertale term) is when a person mistakenly links anything slightly mysterious, or anything slightly resembling Gaster (leitmotifs, font or face) relating to Undertale or Deltarune, to the character W.D. Gaster, even if it is very hard. This is usually because Gaster is very mysterious and of a certain significance to said games' lore. In most cases, relating things to Gaster is not appropriate for the situation and/or possibly misleading.
A: Woah that new Deltarune song has Gaster's Theme playing at 0:44! If you listen to the piano...
B: Those are just arpeggios. You've got the Gaster Effect
B: Those are just arpeggios. You've got the Gaster Effect
Gaster Effect by Stratollera April 15, 2024
Gaster Bullshit
"Gaster Bullshit" is when a game has major fourth wall breaks, ARG links, hidden mysteries, or anything other elements that could be compared to W.D. Gaster. Also used for any sketchy shit going on in Deltarune that probably connects to him.
"I heard oneshot had a bunch of gaster bullshit so i had to give it a try"
"WHAT DO YOU MEAN THE KNIGHT HAS HOLES IN ITS HANDS??? THIS IS GASTER BULLSHIT BRO"
"WHAT DO YOU MEAN THE KNIGHT HAS HOLES IN ITS HANDS??? THIS IS GASTER BULLSHIT BRO"
Gaster Bullshit by ElliottLava January 10, 2026
Bruton Gaster
Bruton Gaster by smoshme July 17, 2011
WingDing Gaster
WD Gaster (named after the fonts WINGDINGS and Aster) is a secret character in the RPG UNDERTALE by Toby Fox
Nobody knows much about Gaster, we don't even know what he really looks like, but we know that in the game he was the former royal scientist of the underground
abilities: unknown
Possible appearance: a possibility of what DR Gaster looks like is a goopy noseless Skeleton with a crack going up his right eye and another going down his left eye, he wears a black lab coat and a white sweater, and appears to either have a big hole in both his hands or his hands are closed/ in a fist
it is widely believed that Gaster is the father of sans and papyrus ( the skelebros named after the fonts comic sans and papyrus)
another belief is Gaster created the skelebros by cutting a hole in each of his hands and using what he cut out to clone himself (creating sans and papyrus)
another belief is after Gaster was shattered across space and time he was split into 2 beings therefor meaning sans and papyrus could be 2 halves of Gaster
nobody knows how or why Gaster was erased from his timeline and shattered across space and time
some believe he fell into the core (a giant power converter that converts lava into power that Gaster created)
some say he was pushed in
some say he was sucked into a black hole during one of his many experiments.
Nobody knows much about Gaster, we don't even know what he really looks like, but we know that in the game he was the former royal scientist of the underground
abilities: unknown
Possible appearance: a possibility of what DR Gaster looks like is a goopy noseless Skeleton with a crack going up his right eye and another going down his left eye, he wears a black lab coat and a white sweater, and appears to either have a big hole in both his hands or his hands are closed/ in a fist
it is widely believed that Gaster is the father of sans and papyrus ( the skelebros named after the fonts comic sans and papyrus)
another belief is Gaster created the skelebros by cutting a hole in each of his hands and using what he cut out to clone himself (creating sans and papyrus)
another belief is after Gaster was shattered across space and time he was split into 2 beings therefor meaning sans and papyrus could be 2 halves of Gaster
nobody knows how or why Gaster was erased from his timeline and shattered across space and time
some believe he fell into the core (a giant power converter that converts lava into power that Gaster created)
some say he was pushed in
some say he was sucked into a black hole during one of his many experiments.
ENTRY NUMBER SEVENTEEN
DARK
DARKER
YET DARKER
THE DARKNESS KEEPS GROWING
THE SHADOWS CUTTING DEEPER
PHOTON READINGS NEGATIVE
THIS NEXT EXPERIMENT
SEEMS
VERY
VERY
INTERESTING
...
WHAT DO YOU TWO THINK
- WINGDING Gaster
DARK
DARKER
YET DARKER
THE DARKNESS KEEPS GROWING
THE SHADOWS CUTTING DEEPER
PHOTON READINGS NEGATIVE
THIS NEXT EXPERIMENT
SEEMS
VERY
VERY
INTERESTING
...
WHAT DO YOU TWO THINK
- WINGDING Gaster
WingDing Gaster by comicsans92 September 15, 2017
W.D. Gaster
W.D. Gaster is a character from the game that made it to the top game lists of 2015, Undertale. This character is very rare and hard to find unless you have a certain software. There have been many theories about W.D Gaster such as him being Sans and Papyrus's dad. There are other theories such as him being Sans and Papyrus mixed together, or being a scientist that created Sans and Papyrus. He is called W.D. Gaster is because he speaks in WingDings (W.D.)
W.D. Gaster by PokemasterDude May 19, 2018