la-la land

la-la land idiom
  1. Los Angeles, California (often abbreviated L.A.). This expression pokes fun at the alleged eccentricities of the city's inhabitants. For example, What do you expect? Frederick has lived in la-la land for ten years and it has rubbed off on him. [Slang; c. 1980]
  2. A state of being out of touch with reality, as in I don't know what's going on with Amy—she seems to be in la-la land. [Slang; c. 1980] Also see cloud-cuckoo land; never-never land.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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