(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 29, 2012
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After you pee and you put your cock away before the last few drops..
I was at my old ladies house and got old man drool on my jeans..
by TerableT May 21, 2023
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Considered the best chinese traditional pop rock in West New York , NJ. Started in
Oh man , the Grimy Old Man Shoes is playing at Steve's house today.
by Iodop May 6, 2009
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When a young girl (minor under 15) being with an old man( more than twice her age) is acceptable. Because she is being raised by crangster gansters in the early 90's. In that world 🌍 those things were accepted. And the girl didn't know any better.
Dennis wasn't my boyfriend he was my old man. He raised me.
by Angel constantinople April 20, 2021
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