“ ‘“Boomer” is the N-word of ageism. Being hip and flip does not make bigotry ok, nor is a derisive epithet acceptable because it is new.’ ”

That is radio host Bob Lonsberry, described in his Twitter TWTR, +1.62% bio as an Army veteran and a churchgoing member of the National Rifle Association, taking offense to the use of the word “boomer.”

The classification has, indeed, been popping up more often lately, thanks to the emergence of the phrase “ok, boomer,” which has become a meme for dismissing out-of-touch arguments from the older generation.