A dumbo who has poo for brains and therefore thinks stinky thoughts.
Mitch: Why don't you like me
Kath: Mitch, you're a poo brain
by KathyK May 25, 2008
An insult applied to a dim-witted, brainless person.
"I've lost my car keys."
"You poobrain!"
by McGonagall April 24, 2006
A poobrain pu-brane is a cranial sheister.
A turdiliacus of the highest order.
Usually recognized by an indiscrete smell of faeces.
Popular usage: Don't be such a "poobrain" you egg-head Sheister!
by Holster April 25, 2006

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×