A TikTok man with beautiful facial hair with 80's glasses who contextualizes his statements with great ability. He thinks Chicago pizza is pizza which he is wrong about. His name is in fact not Dan and he is also not an uncle.
Did you see that guy who uses fancy words in his duets? Oh you mean Uncle Dan, yeah he's cool.
by DavidD86 August 7, 2020
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un•cle dan

FORMAL
adjective

A man who's neither an uncle nor named Dan, he does however say some interesting shit.

INFORMAL
noun
A tiktok influencer with over 20k followers. He is usually seen deconstructing asinine points found on the app TikTok nothing he says is serious, but he's always right.
noun: "WOW! Uncle Dan has such a great beard!"
adj.: "You're very Uncle Dan"
by Ehbunni2 August 7, 2020
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The creepy uncle that will stick their hands in your ass and marries the type of girl that likes to bounce on booty during the family holiday gatherings.
Goddammit! I just got a ‘The Uncle Dan’”
What’d he do?!”
“He tried to wedgie me in the family Christmas dinner!!”
by iM nOt Ur FaMiLy April 27, 2019
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also known as a bold munk,

and associates with very angry pugs. They love terrible sports teams such as The jets, and love Guy Ferrara. They could very well be Irish and have a very hard time growing hair
Ugh, he's such a uncle dan
by Dk6968 August 23, 2017
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a very cool creepy old man that drives a tooted up escalade and screams trump 2020!
uncle dan dan looks hot :)
by that big black dude September 15, 2020
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A guy that starts by grabbing your waist and thigh but slowly evolves into pecker grabs. Stay away from him if you start to see the signs.
Oh he grabbed your thigh? Watch out bro, he may be going uncle Dan mode
by Trumplover637272 May 9, 2023
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The act of adopting a female in adolescence and then marrying her as soon as she is of legal age
He straight up pulled an uncle dan when he married his adopted daughter as soon as she was 18
by Msmith17192 January 19, 2019
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