(lit. from Mexico City) Calling someone from Mexico City chilango or chilanga is as offensive as calling someone from New York City newyorker. There is no other word to be used in lieu. Chilango is not an insult, though being one is regarded as a moral handicap by some provincial Mexicans, who typically haven't spent in the city longer than what it takes to be mugged twice. A literary portrait of chilango-ness was painted by Jaime López in his poem "Chilanga banda", later musicalized by Café Tacvba.
Some chilangos love hanging out in Chapultepec park