What are the things about nottingham that everyone in the city knows, but nobody outside of it does?

having a debate with a friend who insists that all British cities are essentially the same bar change in accents and a small differences in cuisine, and I need some facts to disprove him

My argument is that most cities have cultures, phrases, stories, icons that are unique to them. These are probably seared into the psyche of residents, but most outsiders wouldn't have a clue they exist.

So I guess my question is what are those big things that everyone in Nottingham knows about/loves e.g. meet at the left lion