1
- a medium-sized long-tailed bird, typically with a grey or brown back and barred or pale underparts. Many cuckoos lay their eggs in the nests of small songbirds.杜鹃, 布谷鸟。
1.1
- Family Cuculidae (the cuckoo family): numerous genera and species, especially the (Eurasian) cuckoo (Cuculus canorus), the male of which has a well-known two-note call. The cuckoo family also includes the coucals, roadrunners, malcohas, and anis.杜鹃科：众多属, 众多种, 尤指大杜鹃（拉丁名Cuculus canorus）, 雄鸟以双声鸣叫闻名。杜鹃科还包括鸦鹃、走鹃、地鹃和犀鹃。
2
- informal a mad person〈非正式〉疯子。
- informal mad; crazy〈非正式〉发疯的, 精神错乱的; 疯狂的, 丧失理智的：
people think you're cuckoo.
人们以为你疯了。
短语
cuckoo in the nest
- an unwelcome intruder in a place or situation不速之客, 闯入者。
词源
Middle English: from Old French cucu, imitative of its call.