The term “OK BOOMER!” (capital letters intentionally and ironically used) has been omnipresent lately. I first took notice of it last month when a member of the New Zealand parliament used it against an arguably older fellow member who was heckling her during a speech about the climate crisis. The recipient of her retort may not have understood its meaning, but those of her generation certainly did. Similar to “talk to the hand,” this expression dismisses the other party and ends the conversation, yet it’s more biting than that. “OK BOOMER!” implies that the recipient can’t even understand where the other party is coming from – as if there’s no common background or even language, hence there’s no need to continue.