A person with a fragile mindset and lacking the ability to deal with tough situations. Feeble.
Whenever Mitch is given constructive criticism, he turns into a total mental midget and starts freaking out thinking he is going to get fired and becomes all pissy and whiny. He can't mentally deal with pressure and folds like a cheap lawn chair.
by mflannery420 April 5, 2011
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A person of extremely low I.Q.. Prone to being clueless in all aspects of life.
That guy is such a mental midget, it's almost criminal that he be allowed to live.
by Ghost July 27, 2003
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a person who is narrow-minded or has limited knowledge or insight to anything outside his or her immediate life.

basically someone who lacks education or higher thought.
I tried to start a conversation about Hapsburg Europe with that hot looking babe at the party who is supposedly a history major.
turns out she's just another mental midget, since all she talked about was her ex boyfriend Diego and her Mary Kay cosmetics collection!
by polo June 18, 2005
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Brad Lidge

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I never should have bet the Phillies in my MLB parlay... Brad Lidge can't close games and gets so easily rattled when he puts runners on base. That guy is a mental midget. Fucking Brad Lidge....
by payday0023 November 4, 2009
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A guy with an ego under 4'8".
A mental midget is not above making your life miserable.
by Solid Mantis August 31, 2018
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Looney Left Wingers that only listen to and believe the talking points from the DNC, the Fake News Media, and their fellow Hypocrites. They don't look up the information and Fact Check for themselves. They believe that Progressivism a.k.a. Socialism (then comes Fascism - Communism - Marxism) is better than Capitalism. That America should become a Third World Country within a One World Order. They believe that they are entitled to whatever they want for free and that someone else should pay for it. They don't believe in GOD or Jesus. Pretty much the definition of a Mental Midget is a person who believes that one plus one equal three (1 + 2 = 3), because that is what he was indoctrinated by the Far Left to believe.
A Mental Midget is a person who only believes what they are indoctrinated by the Far Left to believe in, because they aren't able to think for themselves.
by Proud11BDeplorable December 19, 2018
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