Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
Get the mug
Get a Smooth Brain mug for your bunkmate Bob.
The smart way of saying mentally retarded, defective, special, etc.
Garrison: Obama is a pretty good president!
Harrison: You're mentally inept
by Faggotboywithsmalldick February 19, 2016
Get the mug
Get a mentally inept mug for your Aunt Julia.