A slang term used as a response to a statement made by a person from the baby boomer generation. I.e someone likely born between the years of 1945-1960.

The term is a logical fallacy called an ad hominem which addresses the characteristics of the person rather than their statement or position.

It is also used as a meme, and has started simp wars on twitter over the Bernie “ok boomer” girl.

One of the worst memes ever created.
“Cutting in line is disrespectful, you shouldn’t do that.” -said Frank aged 60
Whatever you say, boomer. Ok, ok boomer.” -said some random teenager with no respect for anything
by RobertWill April 22, 2020
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An ageist(yea that's a word) phrase used by younger generations to react to something said by someone born in between 1946 and 1964 when they are relating to when they were a kid.
"Back in my days..." said the boomer

" ok boomer " joked the younger person
by the smart lynx December 02, 2019
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An impudent insult hurled by a segment of the young population. It is used to deflect debate when a young person is promoting their regressive ideology.
Smart person: "The earth revolves around the Sun."

Regressive imbecile: "Ok, Boomer."
by The Truth Dammit! October 31, 2019
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An already overused unoriginal response the youngsters say to boomers, aka baby boomers or older people.

They say it in an attempt to be witty and shut down conversations, because they are tired of listening to older people, older people who are even more sick and tired of these young whiny entitled children.

When a youngster does not have an argument or anything original to say they say okay boomer because someone else said it and it's trendy to copy others in 2019.

Especially youngsters nowadays, little rascals!
Boomer: "Hello!"
Youngster: "Ok Boomer."
Boomer: "I'll get double cheeseburger with large fries."
Youngster: "Your total is $5.99 first window."
Boomer: "You look adorable in your little uniform, look at you joining the workforce finally becoming less of a burden on society, great job!"
Youngster: "Ok Boomer."
Boomer: "Is that the new iPhone?"
Excited youngster: "Yeah! I just got it thurs...
Interrupting Boomer: "Don't care! Ha! Got eeem! See you later Chad!"
Youngster: "OKAY BOOMER! Damn they didn't hear me, oh well I'll say to the next customer. Welcome to McDonalds Can I take your order?"
Boomer #2: "Hello!"
Youngster: "Ok Boomer."
by Odd_James November 25, 2019
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Ok boomer is a phrase used to end a conversation with a boomer. Boomer refers to an attitude towards millennial and gen z society.
Old person: Why do you young people always have to be stuck on your phones
Anyone younger than 40: Ok boomer
by Fluffy | | Pluffy October 15, 2019
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Deborah, you will not believe what derogatory phrase a group of snowflakes said to me today.”

“What did those lazy millennials say, Gary?”

“Well, as usual, they were complaining about being in debt because of college. So in response, I told them they wouldn’t be in so much debt if they got off those god damn phones. Then, they proceeded to say ‘ok boomer.’”

“THAT IS OUTRAGEOUS! You better have threatened to call the police on them, Gary! The ladies in my book club say that’s the equivalent of saying the n-word.”
by long_ear_hair November 10, 2019
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The polite way to tell an old person to fuck off
Grandma: back in my day we had to walk 10 miles to school uphill and in the snow. You kids are spoiled
Me: Ok Boomer
by Superscrub67 November 04, 2019
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