Peter York quotes
Hooray Henries are aged between 18 and 30; main interest, getting drunk together; ambition, if ambitious: to get drunk enough to do some crazy thing which will go down in the Hooray annals as a Historic Act of Hilarity.
If beauty isn't genius it usually signals at least a high level of animal cunning.
In the Golden Age, that is the 1970's, the Phoney Wars were... style wars... style became a weapon to forge your own legend. Style started to be accessible in a quite unprecedented way.
NQOCD (not quite our class, darling) is an American joke. You might say 'He's a bit ordinaire...'
You will not get anyone to admit belonging to the Sloanes. Some have even adopted mufti. But nobody need feel ashamed of being a Sloane Ranger.