probably the second most cryptic declaration of 'origins' I have ever heard

Wow. Thank you, I think!

Actually I wasn't trying to be that mysterious, just wanted to leave the possibility of another guessing game.
Put more directly, I'm white/Caucasian (still not comfortable with the latter - seems to imply descendence from the erstwhile USSR), both my parents are from another country but are "naturalised" British.
It may or may not be a big clue that my grandparents & parents came to England just after the War. Along with quite a lot of other fellow countrymen.

It's no big deal - ask and I'll tell!

Oh yes - what was the first most cryptic origin?