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 2, 2010
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Syndrome that old men get, making them want to unnecessarily stuff.
Old man syndrome is Look out the window, yell at the cat in the bowl, ask about stuff the lost years ago and try to find. Go on a mission to accomplish something yet the goal is small like a new pillow for the couch.
by Retired Poet April 3, 2018
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1. The feeling of being an old man when you really aren't. To feel very very old compared to your actual age.

2. To have bodily pains which aren't that bad but make you feel old.
3. To feel old compared to the people in your life.

4. Staying inside and not going out, while regaling of your youthful days.

5. To look like an old man and/or feel like an old man.
1. After finding out he was seven years older than everyone else at his work, John had a severe case of old man syndrome.
2. After a summer of being a hermit, Jane had a serious case of old man syndrome.
by yumyumgopop September 23, 2010
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A state in which one finds themselves randomly walking around, usually without a set course or destination.
Man 1-"What's he doing? That's the third time he's walked by the doorway."

Man 2-"Dunno, must have Wandering Old Man Syndrome."
by Khozo September 22, 2010
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When someone acts like an old, grumpy cunt.
"Shut up and stop being so childish" "Never mind him, he has Old Man Cunt Syndrome"
by DRAHNODES October 14, 2013
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(1)Complete reversal of previous positions on important or trivial matters affecting everyday life ... normally but not necessarily appearing when one turns 50+ ...

(2)Suddenly giving up on previously held beliefs ... Flipping-flopping on a given issue ...
Bob is a peace activist his entire life, but while on his death bed, he decides that conflict is a necessary action of humanity, he is obviously suffering from "Old Man Derangement Syndrome".

Fran is a life long Republican, but when she turns 60 years old, Fran becomes a Democrat, throwing away long .held political beliefs.

Jim believes in marriage being between a male and female, but in his later years of life, decides marriage can be between a male and female, a male and male, or a female and female.
by HatesOldManFlipFlopping May 28, 2012
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