People sometimes use La-La land to mean an imaginary place. For much of the time he was in hospital, he was under sedation. `I was in La La Land,' he said. = cloud-cuckoo land. be/live in la-la land to think that a situation is much better than it really is, in a way that seems slightly stupid
People sometimes refer to Los Angeles, in particular the Hollywood district of Los Angeles, as La-La land. her position as La-La land's premiere hairdresser