1)Where a person of short stature believes they have the ability to take on any person at any task. It is a general cockiness that is in a short person to replace the lack of height. Beware of anyone with short man syndrome.

2)When someone who is short gets an unfair natural advantage in some type of physical activity i.e. running, stretching, squating, benching, etc.
1)Guy 1 "Man why is Matt so aggressive towards me?"
Guy 2 "Because dude he has short man syndrome"

2)Guy 1 "I don't get why that guy can squat so much and run so fast."
Guy 2 "Well just look at him he has short man syndrome."
by theballer223 June 9, 2010
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Short Man Syndrome: the typical characteristic of any male under 5'10". Including attitude problems, and the necessary need to make their wife/girlfriend feel inadequate to compensate their own inadequacy. Tendency to be bullies and abuse people to make themselves feel better.

And all short men are in denial of it!
"Never date a man under 5'10", because he's bound to have short man syndrome."
by Posh Birds Do It Best December 3, 2009
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When a Vertically Challanged male tries to make up for his lack of height (normally to the opposite sex) with various obnoxious/annoying stunts, usually with a detramental effect to the popularity/confidence of the people around him. This decreasing of others' confindence makes the sufferer feel more important. Unfortunatly there is no known cure.
John: Hello Lucy I was wondering if you would go to the Cinema with me on saturday?
Percy(who suffers from Short Mans Syndrome):Hey Lucy, did you know John enjoys German Fetish Porn ??
Lucy: Oh my god wtf ??
Percy: Yeah its true.
John: Omg no it isnt!!
Lucy: Err bye...
John: Wtf did you do that for ?? Now she hates me.
Percy:Yayy !! I feel important!! I don't feel short anymore!!
John: Twat.
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usually short men who are in fact pussies, but feel the need to overcompensate everything and act tough to hide thier true pathetic nature
Man that kid matt, who also happens to be a huge twat, has some serious short man syndrome!
by Sum Guy February 1, 2006
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The need for a person of small stature to own a large vehicle (an SUV or a truck).
She's definitely suffering from short man syndrome, she's barely 5 feet tall and she's driving a Hummer. Her eyes barely come above the wheel.
by xxlinneaxlovexx March 1, 2009
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When some short guys think they need to act tough to make up for their short stature. They may also try extra hard to get hold of any women.
"Paul is a little guy with a big ego. He's 5 foot 4 but has biceps the size of boulders. He also looks extra hard for girls on Snapchat or Instagram who he doesn't even know, to act like he can get a girl. Definition of Short Man Syndrome
by Schmo October 18, 2018
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the obnoxious attitude taken up by men under six feet tall with ambiguous genitalia
Bob got overly furious after I accidently spilled my Charbay on his head. He has a bad case of short man syndrome.
by anon dot June 13, 2006
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