cuckoo

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cuckoo¹

  • /ˈkʊkuː/ UK
  • /ˈkɵkʉw/ British, Southern, Standard
  • /ˈkuku/ US
  • /ˈkʉkʉ/ Northern Ireland, Scotland

Rhymes with -ʊkuː, -uːkuː

Where it comes from

From Middle English cokkou, kokkow, cukkuk, gokkouȝ, probably from Old French cocu, coquu, cucu (whence French coucou); ultimately onomatopoeic of the song of the male Common Cuckoo (Cuculus canorus), perhaps via Latin cucūlus (“cuckoo”).

Compare dialectal English gowkoo (“cuckoo”). Displaced Middle English gnokken (“cuckoo”) and native Middle English yeke, ȝek (from Old English ġēac (“cuckoo”)), see English gowk.

The UK sense (verb sense 3) is by analogy from the bird's practice of brood parasitism.

The Malaysian and Singaporean sense (noun sense 8) is a phono-semantic matching of Hokkien 咕咕鳥 /咕咕鸟 (ku-kú-chiáu)

noun cuckoos

  1. countable, uncountable Any of various birds, of the family Cuculidae within the order Cuculiformes, famous for laying its eggs in the nests of other species; but especially a common cuckoo (Cuculus canorus), that has a characteristic two-note call. He knows me, as the blind man knows the cuckoo, By the bad voice.
  2. countable, uncountable The sound of that particular bird.
  3. countable, uncountable The bird-shaped figure found in cuckoo clocks.
  4. countable, uncountable The cuckoo clock itself.
  5. countable, uncountable A person who inveigles themselves into a place where they should not be (used especially in the phrase a cuckoo in the nest).
  6. countable, slang, uncountable Someone who is crazy.
  7. alternative, countable, uncountable Alternative form of coo-coo (Barbadian food).
  8. Manglish, Singlish, alternative, colloquial, countable, uncountable Alternative form of ku ku jiao (the penis)

    Similar: cuckoo bird, ku ku bird

verb cuckoos · cuckooing · cuckooed

  1. To make the call of a cuckoo. Switzerland is the home of many musical toys and here were carved whistles in the shapes of birds. These cuckooed realistically when blown into, with the beak opening and shutting, and the tail moving up and down to produce the 'cuck' and the 'oooh'.
  2. To repeat something incessantly.

    Similar: parrot

  3. UK To take over the home of a vulnerable person for the purposes of carrying out organized crime in a concealed way. She'll have been cuckooed. That'll be the Knezevics. They can't launder fast enough, so what do you do with it? Where do you put it? You hide it in somebody else's place; somebody who han't got a clue what's going on and couldn't do a fat lot about it if they did.

adjective more cuckoo · most cuckoo

  1. slang Crazy; not sane. I think I'm going cuckoo!

Cuckoo²

proper noun

  1. A locality in Dorset council area, north eastern Tasmania, Australia.

Thesaurus

Closest in meaning: goose, jackass, fathead, zany, goof, ani, shrike, bird, rhododendron, nuts, peek-a-boo, flake, ahoy, sicko, psycho, madman

Translations

Every language

noun someone crazy — see also crazy

日本語風狂の人 fūkyōnohito
中文狂者
Françaiscoucou
Русскийку-ку́ ku-kú

noun the bird

Españolcuco, cuclillo, críalo
한국어뻐꾸기 ppeokkugi, 두견새 dugyeonsae
日本語郭公 kakkō, カッコウ kakkō
中文杜鵑 /杜鹃 dùjuān, 布穀鳥 /布谷鸟 bùgǔniǎo
हिन्दीकोयल koyal, कोकिला kokilā
Kiswahilikekeo
Portuguêscuco
Françaiscoucou
DeutschKuckuck
Italianocuculo, cucù
Ελληνικάκούκος koúkos
Românăcuc
Русскийкуку́шка kukúška
Tiếng Việtchim cu, cu cu, cúc cu
العربيةوَقْوَاق waqwāq, وَقْوَاقِيَّة waqwāqiyya
עבריתקוּקִיָה kukiyá

noun the sound

हिन्दीकूकू kūkū
Françaiscoucou, coucoulement
Deutschkuckuck
Italianocu cu
Русскийку-ку ku-ku
Tiếng Việtcu cu, cúc cu

verb to make the call of a cuckoo

Portuguêscucar, cucular
Françaiscoucouler
Русскийкуковать kukovatʹ

Talk about this word

Cite this
MLA

"cuckoo." Wiktionary, via Micwyn, micwyn.com/word/cuckoo. Accessed 6 Nov. 2026.

APA

cuckoo. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/cuckoo

Chicago

"cuckoo." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/cuckoo.

BibTeX
@misc{cuckoo_2026,
  title = {cuckoo},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/cuckoo},
  urldate = {2026-11-06}
}