Based

Opposite of "baseless" -- in reference to reports by the media that the public are entertaining "baseless" (conspiratorial) claims in an attempt to cover them up.
News Outlet: "...the baseless conspiracy that Epstein didn't kill himself."
Commenter 1: "Epstein was murdered."
Commenter 2: "Based."
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Based

Slang: Agreement with a regressive opinion to try to fit in with a crowd. Could be read as short for 'Based on conformity'. The polar opposite of punk.

May have had a different slang definition originally, but this has what it has become through online usage.
Punk:

Living your life your own way giving no fucks what people think = That's punk.

"Based":
Moron 1: ""Hitler had the right idea""

Moron 2: "That's based, bro."
by ShadowBlaze January 10, 2023
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Based

(A gen Z slang)
To be yourself and not care about how others view you
or expression without care about how others Point Of View is on you.
"Bay - si - tuh"
"I think pineapple on pizza is good, Whatever you think donest matter."
Then you would say "Based"
by Gen z slang slayer November 09, 2023
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Based

Based is another word for epic
Guy #1: Did you see that Minecraft Steve is in Smash?
Guy #2: Yeah, it's pretty based.
by StunV2 October 14, 2020
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Based

Something hella chill, cool, laid back, etc Based is another form of the word cool.
Oh you wanna donate me some money? Based.
by FattestPanda67 February 02, 2021
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based

What is "Based"?
In an interview with Complex, Lil' B was asked what "based" meant:
"Based means being yourself. Not being scared of what people think about you. Not being afraid to do what you wanna do. Being positive. When I was younger, based was a negative term that meant like dopehead, or basehead. People used to make fun of me. They was like, 'You’re based.' They’d use it as a negative. And what I did was turn that negative into a positive. I started embracing it like, 'Yeah, I’m based.' I made it mine. I embedded it in my head. Based is positive."
by nineZeroEightOne May 07, 2021
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Based

When you are like Abel Dejene.
by BasedGud November 22, 2016
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