Babbangus
Babbangus is what you call someone who's so big and stupid, they’re like a baboon who ate a whole pizza. It’s the ultimate insult for someone who's being extra dumb.
My uncle fell into a pool. I told him, 'You're a babbangus!'
My sister drew on the wall with crayons. I said, 'You're a babbangus!'
My brother tried to explain the internet to me. I said, 'You're a babbangus!'