Gastle

Someone whom isn't tech savvy

Oh don't be a gastle

by Saladbowls November 23, 2020

Bruton Gaster

From the USA Network TV Series Psych. Burton "Gus" Guster's name spelled incorrectly by a museum

And you must be Bruton Gaster.
Burton. Guster. It is Burton Guster.

by smoshme July 17, 2011

Gaster

Nightmare fuel

I know he isn't that scary, but Gaster's been haunting my nightmares since 2015.

by HotHotLegg April 11, 2020

gaster

It's a secret!
But no seriously, Gaster is a secret character from the game UNDERTALE. Said to be Sans and Papyrus' dad. Well, it's not confirmed, but he may be. He speaks in WingDings too.

Undertale Fan: I FOUND THE SECRET GASTER!!!

by SkyBerry June 5, 2016

Gasterflasted

Confused or unsure

I'm gasterflasted of whats going on .

Michael Jackson didn't understand he could not touch kids. HE WAS GASTERFLASTED!

by sadboisparkz May 27, 2021

gaster blaster

Sans' guns pew pew pew pew pew pew pew

Sans: I'm gonna freaking kill you.
Frisk: But saaans...
Sans: WITH A GASTER BLASTER!!!
Frisk: ded

by chara the human :) May 22, 2017

Gaster

The skeleton of a dragon.

When a dragon is killed it becomes a gaster.

by Desipida February 13, 2020