What is a leitmotif?

What does the word Lieutenant mean?

Carl Sagan had a unit of measurement named after him, how much is one “Sagan”.

In the world of films, who is Allen Smithee?

What is a Mondegreen?

What is an Earworm?

Where did the game of Squash originate?

Toulouse-Lautrec once invented a cocktail called “The Earthquake”, what is in it?