Definition of ok boomer, okay boomer ?

A dismissive reply younger people use when an older person drops a take that sounds stuck in a black-and-white TV era. It’s not about literal age as much as mindset: ignoring climate issues, mocking protests, or acting like college still costs $300. “Ok boomer” is basically the polite version of “your worldview expired three updates ago.”

“Just work three jobs and stop complaining about rent.” “Ok boomer.”