Simply some one who is rather dimwitted and stupid or does something, says something idiotic or stupid.
by Freedom Mine November 15, 2013

To lack intelligence and the common sense of direction like the workers at the Cross Lake, MN Subway.
Customer - I would like a six inch spicy Italian with no tomato.
Subway Worker - One six inch spicy Italian with extra tomatoes.
Customer - Subway Brains.......
Subway Worker - One six inch spicy Italian with extra tomatoes.
Customer - Subway Brains.......
by Fisher-Z June 2, 2015

A female who has gotten by on her good looks, and a great set of tits, at the expense of an education. A play on shit for brains.
Danni is so hot, but I can't stand to be in her presence. She has tit for brains, and her ignorance is a real turn off.
by Anony_mouse_776 November 29, 2010

by tiggrnut93 January 14, 2016

by James1976 October 25, 2007

poop for brains a non vulgar less offensive alternative to shit for brains one who is extremely stupid and lacks all common sense
this man attempted to rob his neighbors house and got attacked by neighbors pitbull he was lucky to get away with his life what a stupid poop for brains
by littlejimmie May 2, 2019

When someone's brain deteriorates over time due to alcohol/drugs/sleep deprivation, etc. Symptoms of oatmeal brain: memory loss, impaired motor function, slurred voice, stumbling, slow speech.
by PinkPanther13 May 28, 2018
