[kloud-koo-koo-land, -koo k-oo-]
an idealized, illusory domain of imagination; cloudland: the cloud-cuckoo-land of technicolor cartoon whimsy.
Origin of cloud-cuckoo-land
1815–25; translation of Greek Nephelokokkȳgía, the realm which separates the gods from mankind in Aristophanes' The Birds
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a realm of fantasy, dreams, or impractical notions
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cloud Cuckoo Land
Imaginary city built in air, translating Aristophanes' Nephelokokkygia in "The Birds" (414 B.C.E.).
Online Etymology Dictionary, © 2010 Douglas Harper