kaka head
A person who is so full of poop and dumbness that they can't think straight.
He tried to explain why the sky is blue. He's a kaka head. He said it's because of a fart.
She cried when she saw a spider. Kaka head. She's afraid of a tiny spider.
He told me he's going to be a king. He's a kaka head. He doesn't even know how to tie his shoes.