A disease when you tend to do something stupidly and not realize what you are doing.
Guy ; I have braindeadism.
Girl ; I know, you keep hitting yourself.
Guy ; I AM!?
by CHINGPINGLING January 17, 2011
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Literally, when somebody's brain has stopped functioning such that they will never regain conciousness, hence coloquially somebody who is idiotic, dumb or clueless beyond belief. Similar to "too stupid to live".
You dented my car, you braindead fuck!
by Linton July 11, 2003
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A increadibly idiotic individual who hasn't a sustance for anything that is going on. He or she is stupid, retarded, mental, ignorant, annoying, funny to make fun of, or any combination of the previous terms.
by CrazyBob62 May 10, 2006
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What happens after shit gets 'craxy'
Shit got craxy at the party mansion. Next day Jono was wondering why he could not function when it occurded to him that he had braindeaded himself. Things are simpler for him now.
by Jono@partymansion February 18, 2008
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Gory zombie horror film of extremely high calibre by Lord of the Rings' Peter Jackson and Fran Walsh. Great stuff.
Braindead is a great film, I liked the bit with the lawnmower!
by cakeandfinewine September 23, 2004
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When you smoke so much pot through out your life that you become really stupid.

Synonym: Vegetable
Joe:Poor guy, he smoked way to much pot.
Bill:He's quite the vegetable.
Joe:Maybe we should wipe up the drool from his chin?
Bill:Naw,he is braindead,he will just keep drooling.
by Roflmfaoamp May 23, 2009
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1. Used to describe people who make bad decisions, I.E. have no brain. Can fill the place of words like dumb, dull, and stupid.

2. A nickname for Iowa's Governor Branstad
Ex: "Guess what, Braindead cut education funding again," said John.
by Truth Jester April 14, 2011
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