"OK boomer" is a catchphrase and Internet meme often used by teenagers and young adults to dismiss or mock attitudes typically associated with people born in the two decades following World War II, known as baby boomers. However, it has increasingly been used to refer to pre-millennial people in general, regardless of when they were actually born. The phrase first drew widespread attention due to a November 2019 TikTok video in response to an older man, though the phrase had been coined years before that.