As for the 'Chav' thing: I don't especially like it, because it seems brutish and lowest common denominator, but it's a perfectly acceptable expression of a certain sort of culture, as long as the levels of casual violence are kept to those participating, and don't involve random folk.
I found 'Bling' vulgar, but I'm essentially full of upper-middle-class intellectual good-taste prejudice. Your real Aristo quite likes bling, actually.
Probably the wrong person to ask.