OK, boomer exclamation2 •(Internet, disapproving) Used to sardonically counter or dismiss an older person (typically a baby boomer) as lacking an understanding of the circumstances, priorities, or culture of a younger generation, especially by a millennial or zoomer. •(Internet, disapproving) Used to facetiously suggest that someone is old, boring, or out-of-touch.When I was growing up (Ok, Boomer) the only office that had a dog was a firehouse. — 2019
