P brain
A brain that's been turned to mush by meth and also has the mind of a toddler who just spilled juice on a unicorn
My neighbor is a P brain. He wears socks on his hands and thinks that's fashion.
My teacher’s brother is a P brain. He once tried to teach a parrot how to do algebra.
My mom’s friend is a P brain. She thinks the moon is a giant cheese sandwich.