2) Can mean really polished and sophisticated in a broad sense of the word.
Amanda- haha. I bet they live in williamsburg or something. well, at least they can chat about the advantages of sophocles versus plato in their little smart cars.
Katharine- But people like that don't chat. They have intelligent forums of conversation.
Amanda- Oh they're so URBANE!
2)Claude- Oh, those brooklyn artists! So creative! They're extremely urbane!