When you eat everything in a steady rhythmic chomping motion, especially if that food is pelletized or available in small, bite sized amounts, such as combos.
"After I got high, I got Pac-Man Syndrome and ate a whole thing of candy beans."

"Your father has Pac-Man Syndrome. The prognosis isn't good. I'm afraid he only has a few months at best."
by Keith Robicheux December 30, 2014
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Opposite of Small Man Syndrome. It is where tall men (probably over 5'12) who have probably done nothing in their life except be dicks and failures to society, are seen as superior by either some people or themselves. This is in spite of figures like Napoleon Bonaparte, who conquered a lot of Europe, was only around 5'6-5'7.

While shorter men doing great things might be seen as compensating, that is much better than someone with Tall Man Syndrome as someone with this affliction does nothing at all except disappoint everyone, especially women in bed.

There are two kinds of people in this spectrum. One does great things like lead England and the allies through World War 2 and being a distinguished historical figure, while the other got genetically lucky and nothing else.
"Damn. Look man, I may be short, but I can actually pay my rent on time and hold a relationship. You suffer from Tall Man Syndrome! A big case of it too!"

Short Man: "I just conquered half of Europe!"
Random person: "You are probably just compensating."
Short Man: "Maybe. How's (Insert Tall Man)? Still crying in his parents basement?"
by Khaosyrup March 6, 2022
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The condition elderly people suffer in the presence of younger people. Symptoms include but are not limited to refusal to lose to a younger person, refusal of being wrong, refusal of being at fault, and the urge to use age as justification for their actions, decisions, and opinions.
That old person didn't like reading this definition. His/her "Old man syndrome" kicked in, and he started complaining that it wasn't in proper definition form.

Younger person: You mean according to Webster?
Old person: Yeah
Younger person: Well, this is Urban Dictionary!!! Its meant for fun if nothing else.
Old person: I got 20 years on you! You dont know what fun is!
by pseudonymis maximus November 3, 2010
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When some tall guys act like they have the right to speak to anyone like a piece of dog shit on the bottom of their shoe just because of their height advantage. They think that just because they're big it means they can't get knocked over.
"Billy is a dick. He thinks he can talk to everyone like a piece of shit because he's 250 and 6 foot 4. Worst case of Tall Man Syndrome going."
by Schmo October 18, 2018
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When a child in the family looks nothing like the father or siblings.
It implies that the mail-man is really the father of that child.
the mother is blonde and green eyed, the father is brunette and brown eyed, child 1 is brunette and green eyed, child 2 is blonde and brown eyed; however, little Bobby is a ginger.

People would say he has "mailman syndrome" or call the situation in general "mail-man syndrome"

It would be especially appropriate if the mail man was also a ginger.
by Your Mail Man January 18, 2010
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A condition in which a human male exhibits particular characteristics that would provide clues as to the sized of his member.
A man who drives a big, lifted, 4x4 pickup with monsterous tires would be diplaying the effects of inferior man syndrome.
by Kid Rosco May 18, 2007
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A man who is below average height for his age group, and is aggressive to compensate for his shortness.
"He's so short and aggressive, probably has Short Man Syndrome."
by ijderrick November 9, 2021
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