A person is both stupid (e.g. dumb) while also stubbornly refusing to stop being stupid when asked (e.g. Will Tomasini)
I couldn't teach him how to use the paintball gun because he was running around with it between his legs like a dumbass.
someone who searches dumbass on urban dictionary
person: I searched dumbass on the urban dictionary and now im a dumbass
a D&D party, usually one comprised of four to six idiots
"Don't eat the salmon, dumbass."
A word used to describe a boy that is loykey kinda cute but is really stupid.
A person that is so dumb that they usually are an ass trying to say that ther are right.
Person 1:Monster is the Devil's drink because the logo means 666 in Hebrew.
person 2: no it's just an M
Person 1:no you are all going to Hell
Person 2: you're a dumbass.