Possible Clues:

• Bourgeois, to Brits
• Lower-class, in Leeds
• The opposite of U2 is not acceptable among British upper classes
• Like Cockneys, in British lingo
• Nancy Mitford's class dismissal?
• One of Nancy Mitford's class indicators?
• Term for lower class speech popularised by Nancy Mitford
• Common way for Americans writing about colour?
• Socially unacceptable, some Utopian on Utopia
• Not socially acceptable (to certain people)