My Millennial son, not wanting to be out of step with his generation, referred to his dear father at an “old white boomer” in a chat we were having today. Absolutely accurate. I am an old white boomer and delighted to be one. But for the ageist Millennials this is supposed to be a real slag. And for real ironic cred, the phase, “OK, boomer” is a great comeback when a boomer says something the Millennial has no answer for.
However, it is always fun to shoot back and I tried, Mill – epic fail.
However, pensées d’escalier, I realized I had been close. What Mill lacked was a useful sense of faint derision.
What could do that job?
“Millie”. Just the right note of soy-boi, effeminate, dimness combined with a dash of condescension. And for a hint of Edwardian neo-colonial hauteur in the face of imbecility, “Righty-O, Millie”.
Done.
Jay Currie 
How about Milli Vanilli ? Take advantage of their, everybody better think and say the same thing or else, M&Ms diversity, while at the same time implying their effeminate, phoniness.
Find 5 friends of similar persuasion and do a Christmas serenade. https://www.youtube.com/watch?v=hlSsffF2xhA
I do like the notion of “Millie”. However, I have found the best defense in these exchanges to be a strong offense.
“That’s right, kid. Not only did we have better music, sex and writers than your miserable lot when we were growing up: we came out of it richer than you, more privileged than you, and in control of every government, NGO and economy on the planet, and before we disappear we’re gonna lock down every single benefit so tight that your whole life will be spent paying for our Ibuprofen and heated-spray toilet seats. Now quit whining, suck it up, and go make some kids that YOU can exploit.”
Terry, I am still laughing.
Typical dismissive statement by people who think they know everything. I’m sure each generation that has come before, and will come after, will continue the fine tradition of knowing everything, and only discovering later that they really don’t know anything. The challenge is that you need to accept that fact. Maybe you don’t know everything.