Slang expressions

[detective]

1. Which slang expression for the Queen's Christmas speech is derived from the name of a 20th century opera?

2. What was mid to late 19th century slang in Britain for an inn or tavern called the "Queen's Head"?

[Quizmonster]

Given that Bess is a form of Elizabeth, might it have something to do with the opera, Porgy and Bess?

[Tallulah!]

detective! You are still cheating on Great Fun Quiz!! Naughty