cuckooKK [ˋkuˏku] /ˈkuˌku/名詞1杜鵑、布穀鳥A cuckoo lays its eggs in other birds' nests.杜鵑會把蛋下在其他鳥類的巢裡。2咕咕聲We heard the cuckoo of a bird deep in the woods.我們聽見樹林深處傳來鳥的咕咕聲。3瘋子、傻瓜口語Everyone in the office thinks he's a harmless cuckoo.辦公室裡的人都覺得他是個無害的怪咖。形容詞1瘋狂的、神經的、傻的口語You'd be cuckoo to sell your apartment right now.你現在賣掉公寓的話就太瘋了。動詞1發出咕咕聲The bird cuckooed all morning outside my bedroom window.那隻鳥整個早上都在我臥室窗外咕咕地叫。