be in cloud-cuckoo land

To believe in or be absorbed by unrealistic, idealized, and/or fanciful ideas that are beyond the realms of possibility. If Tom thinks he'll be able to live off his bad poetry, he's in cloud-cuckoo land!

Common Names:

Name	Pronounced	Usage
Emperatriz	em-pe-rah-TREETH (Spanish), em-pe-rah-TREES (Latin American Spanish)	Spanish
Hania (2)	-	Arabic
PhƯỢNg	-	Vietnamese
Demetrio	de-ME-tryo	Italian, Spanish
Florencia	flo-REN-thyah (Spanish), flo-REN-syah (Latin American Spanish)	Spanish
Luitgard	-	German, Ancient Germanic