They will also use the same language when referring to things that others have designated for "tourist use" (e.g.: Avenue of the Americas/Grand Central Shuttle as the "S train")
Also can be used as a synonym for hipster.
Man 1: "Sure, just go down Grand Central here and take the "S train to Times Square."
Man 1: "Yeah it's the shuttle."
Man 2:"Dude, you're such a noobyawker."
Man 1: "What? It is the S!"
Man 2: "It's called the Grand Central Shuttle. No one calls it the S train unless you're a tourist."
Man 1: "But I'm not a tourist! I've been in New York for 3 year now!"