Potato Brain 

A person who has the mental capacity equal to, or less than, that of a potato.

Swaggot: Ay, bruh, I got dat #SWAG

Guy: God, you're fucking potato brain.

Potato Brain by Manatee God August 11, 2015

potato brain 

When someone has the mental capacity of a potato or the same habits of a raw potato.

Human 1: Hey potato brain get up!

Human 2: ..... *silence* .....
That's one potato brain!

potato brain by Mr.Potato Head April 23, 2017

brain potato 

a large grouping of hard snot or a solid booger extracted from one's nostrils while contemplating any subject.

while answering my girlfriends question about whether or not her sister beulah with the acne problem was attractive i rubbed my nose and discovered a large mass of hardened snot i then proceeded to pull it out, scrape it off in an ashtray and said to my girlfriend, fuck no !!!! stupid. i just yanked a brain potato so large it would pass for your sisters left cheek.

brain potato by fixer 2006 April 30, 2007

Mashed Potato Brains 

A temporary feeling of retardation that occurs while studying for a promotional process where a plethora of some useful, mostly useless, contradicting BS, is the subject matter.

Rookie: Sir, can we go over fire behavior today?

FF: dafuq is that shit?

Officer to rookie: Stay away from him, he's got mashed potato brains.

Mashed Potato Brains by A sad FF April 22, 2017

mashed potato brains 

That feeling of mental retardation after coming down from a long night of tripping on acid

Man, I caught some major mashed potato brains the last time we tripped. I don't think I could deal with that again.

mashed potato brains by hobolizardg January 4, 2012