dumby Share definition Flag You tell someone they are a complete idiot with no shred of common sense, but you make it sound less hurtful. wait fuckk nvm DONT DO IT I forgot "dummy" existsThe person who told me to make this is a dumby dumby by JapaneseDogEater October 28, 2020 0 0 Get merch Get the dumby mug. Buy Now — $32.95 See more merch