Ok, Boomer Earring
This particular phrase caused a bit of a ruckus on social media. When dismissing someone older (most commonly from the Baby Boomer generation), millennials and Gen Z-ers have taken to throwing out an “ok, boomer”.
For example, if an older individual corners you to say, “When I was your age, we read books and went outside instead of staring at screens for hours on end.” your response might be “Ok, boomer”. A somewhat sassy, yet overall good-natured way to respond to respond to jibes from older folk.