(Other ethnicities have other "districts," for example, Little Tokyo would be comprised of mostly japanese businesses.)
2. A drama thriller made in 1974 directed by Roman Polanski and staring Jack Nicholson and Faye Dunaway about drought-ridden '30s L.A., corruption, weird family relations, and a divorce specializing private detective; spawned the phrase "it's Chinatown" - the phrase is used to refer to a situation that is impossible to deal with due to the fact that it is the result of issues imbedded in a tangled web of too many people's personal problems and/or ambitions, greed, or deviance, and that there is nothing one person on the outside of that web can do to set everything right because the whole situation is too fucked up.
2. Forget it - it's Chinatown.
Visitors should never claim that they know any bit about China if they've only been to Chinatown.
Wife: hdu! Save it and take me to China!
A place where you can throw firecrackers at old people without getting in much trouble. Its also full of skanky little Chinese restaurants. A lot of weird shit happens in Chinatown.
Person #2: "I got a dead cat for $5."
Person #3: "Hell, you can buy the whole joint for a hundred."