gaster blaster Share definition Flag 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 gaster blaster by chara the human :) May 22, 2017 0 0 Get merch Get the gaster blaster mug. Buy Now — $32.95 See more merch