obvicunt
A person so full of themselves and their own dumbness that they think everyone else is just wasting time pretending to be smart.
My brother is an obvicunt. He thinks he’s the smartest kid in the universe, even though he flunked math.
My neighbor is an obvicunt. She thinks her cat is a genius and everyone else is an idiot.
My friend’s dad is an obvicunt. He yells at the mailman like he’s a personal enemy.