Definition from Wiktionary, the free dictionary
- The fictional place where wandering, sleeping, or dreaming minds are metaphorically said to end up.
- Oh, don't mind him, he's usually up in La-La Land, with all his silly ideas and whatnot.
- Don't worry boss, the guards are in La-La Land. They won't be up for many hours.
- (US, figuratively, humorous or derogatory) Los Angeles, California (or Hollywood.)
- (Canada) British Columbia