Metrocitism
Metrocitism is the act of prejudice against other cities. Usually from one city to another. These people tend to gate-keep their cities' music, fashion, and slang.
Person 1: "You heard about that metrocitism?"
Person 2: "Nah what is that"
Person 1: "Yeah I'm lowkey a metroc for Atlanta"
Person 2: "Nah what is that"
Person 1: "Yeah I'm lowkey a metroc for Atlanta"