If they move around the globe at least twice, expat kids evolve into Third Culture Kids (TCK)s.
Girl 2: Ha, why bother? It's practically based off our lives! Only Blaire and Serena are actually native New Yorkers and not foreigners.
Guy 1: So, which high school do you go to?
Guy 2: I go to Singapore American School, bitch.
Guy 1: Shit, you must be loaded! You an expat kid or something?
Guy 2: Damn right I am!