Chilango / chee-LAHNG-oh / specifically of Mexico City
This is one of those “both sides of the street” slang terms: Residents of Mexico City use it proudly, referring to themselves and things exclusive to Mexico City; outsiders use it derogatorily, to mean “tacky” or “obnoxious.” Since I normally just think of tacos al pastor when I think Chilango, I prefer the first interpretation.