OK boomer can be used online to write off, usually to a humorous or mildly mocking effect, opinions that are perceived as emblematic of attitudes of boomers and older people more generally. These attitudes include a resistance to technological change, inclusivity of marginalized identities, denial or inaction on climate change, and a belief that the problems of youth are due to their …

Startup Life If You Don't Know What 'OK Boomer' Means, You'd Better Read This (Or Else Get a Young Person to Explain) 'How different from the average young men of today!' "Boomer" catchphrases have existed for some time, but "OK, boomer" has gained traction through TikTok.
"Ok boomer" is one of the more controversial memes of late 2019.

Though the phrase had been kicking around Twitter since April 2018, it took off in October 2019 thanks to a viral …

When a baby boomer says some dumb shit and you can't even begin to explain why he's wrong because that would be deconstructing decades of misinformation and ignorance so you just brush it … ; Here's a (brief) overview of how the term grew in popularity. “OK boomer” may seem to have sprung out of nowhere, but it has been a long time coming. Third, boomers using “OK boomers” for positive things that just destroy the integrity of the phrase and so it becomes this weird floating thing that has no meaning. Of all of the memes of 2019, none have caused as much generational contention as "OK, boomer."

The catchphrase "OK Boomer" went viral last year as a tongue-in-cheek dig by young people at older generations. In the highest US court, it was heard as … Millennials have been shouldering blame , shame and dismissal from older generations for … “It’s actually OK, boomer,” my editor says, explaining that OK, boomer is an edgier, dissier, viral version of OK, grandpa. “Ok, boomer” is a phrase that the younger generation is using to dismiss older people. For those wondering what "OK, boomer" means and where the phrase comes from, it's essentially a dismissive retort from younger generations to show contempt for those over 55. This is usually a response to some of the old ideologies that the younger generation deems harmful to society, and it is used especially when someone of your age … Often preceded by a casual “lol” that phrase — “OK boomer” — is the rallying cry of a generation, albeit one delivered with a smarmy eye-roll. The “OK, boomer” meme originated on TikTok by Gen-Zers who are disgusted with condescending older generations, a trend the New York Times first reported on at the end of October.

The meme is a dismissal of the perceived narrow-mindedness of the Baby Boomer generation, typically used by members of Gen Z and millennials on social media platforms like Tik Tok.