Huh. I have never EVER heard that term before, and I belong into that category!
Exact, no, I don't think so, but there have been a lot of reasonably educated guesses.
I think Dillon and Matt are of similar age as Gary, maybe a bit younger with Dillon most likely to be the youngest.
We've estimated Zii to be 22...23 and DiDi and Sandra to be mid-20s. Sonya probably too.