Synonym: bozo, fathead, goof, goofball, goose, jackass, twat, zany. Similar words: beckon, pick off, pick out, kick off, reckon, back of, lock out, back out. Meaning: ['kʊkuː] 
n. 1. a man who is a stupid incompetent fool 2. any of numerous European and North American birds having pointed wings and a long tail. v. repeat monotonously, like a cuckoo repeats his call.
n. 1. a man who is a stupid incompetent fool 2. any of numerous European and North American birds having pointed wings and a long tail. v. repeat monotonously, like a cuckoo repeats his call. 
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61 Instinct impels the cuckoo to migrate.
62 Then he said, We need a new cuckoo clock.
63 They are looking at a cuckoo clock...
64 Think about this: know what a cuckoo does?
65 European arum resembling the cuckoo pint.
66 In England the cuckoo is the herald of Spring.
67 The cuckoo is the harbinger of spring.
68 Gowk is another name a cuckoo bird.
69 Have you gone cuckoo clock in the head?
70 What did it produce? The cuckoo clock.
71 A cuckoo began calling from a hawthorn tree.
72 Don't think he's a cuckoo. He's pretty smart indeed.
73 Gowk is another name for a cuckoo bird.
74 Who knew that the mild-mannered cuckoo clock could evolve into such a gruesome object?
75 Imagine the world's most complicated mechanical cuckoo bird - hidden not in a clock but in what appears to be a double-barreled pistol.
76 Other trees are maple, wooden lotus, camphor[sentencedict.com], narrow-leaf spicebush and cuckoo.
77 My uncle has a cuckoo clock to tell us of the time.
78 I came home just in time to hear the cuckoo clock cuckoo three times.
79 The cuckoo clock poked out its head and called nine o'clock.
80 The bird in the clock gaily hops out and cuckoo.
81 So if we made a cuckoo look less hawk-like - if we removed this bar pattern - it was more likely to be mobbed.
82 I didn't realize when I befriended him that he'd turn out to be a cuckoo in the nest and steal my wife's affections.
83 The responses were significantly more divergent for the free condition of "The Cuckoo" than the directed condition, however.
84 Miles Davis was a great artist but kind of a cuckoo clock.
85 A study has shown that reed warblers - a cuckoo host species - are less likely to attack more "hawk-like" cuckoos.
86 A cuckoo in a tree was crowing sorrowfully. Hearing this, a caring turtledove asked about her sadness in the hope of helping her out.
87 Before the King of Frost - cuckoo land, they did another favorite sketch.
88 In clown stripes and swirls, a foot-long (30-centimeter-long) cuckoo wrasse (Labrus mixtus), common in Irish waters, hovers over a vivid sea floor off Valentia Island.
89 North American cuckoo; builds a nest and rears its own young.
90 Old World ground - living cuckoo having a long dagger - like hind claw.