кукушечка

the cuckoo that sings at night is the loudest cuckoo all right	ночная кукушка денную перекукует
the night cuckoo would outcuckoo any day cuckoo	ночная кукушка денную перекукует (a wife has more opportunities than other people of convincing her man of what he has to do and what he must not)

a cuckoo  /ˈkʊkuː/ - кукушка

to cuckoo - куковать

Cloud Cuckoo Land refers to an unrealistically idealistic state where everything is perfect. 

You're living in Cloud-cuckoo-land

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