champagne house noun wealthy clubbers UK Champagne, generally prefixed with a sense of derision or criticism (as CHAMPAGNE SOCIALISM),HOUSE (MUSIC)
[T]he Champagne house set consists of professionals who, having graduated through the rave years, cannot put their old habits to bed but have on the way picked up new habits commensurate with their occupational status (and pay packet). — Ben Osborne, TheA–ZofClub Culture, p. 47–48, 1999