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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1 The cuckoo comes in April, and stays the month of May; sings a song at midsummer, and then goes away. 
2 The cuckoo comes in April, and stays the month of May; sings a song at Midsummer, and then goes away.
3 In England the cuckoo is the herald of spring.
4 The cuckoo lays her egg in another bird's nest.
5 The cuckoo is characterized by its familiar call.
6 The cuckoo is a harbinger of spring.
7 The cuckoo harbingers the coming of spring.
8 He has gone absolutely cuckoo.
9 The cuckoo is the herald of spring.
10 The cuckoo lays its eggs in other birds'nests.
11 A cuckoo is able to lay in a range of different nests.
12 A dunnock plays host to a young cuckoo.
13 The country dictated that Operation Cuckoo be abandoned.
14 So every nation is equally cuckoo.
15 A bird cuckoo deposits her egg and disappears.
16 Sylvie had brought a cuckoo into her own nest.
17 The cuckoo clock spun round and round.
18 I am famous for cuckoo clocks and chocolate.
19 The best time for the cuckoo to lay its egg is after the hosts have started laying and before they have finished.
20 A tiny reed warbler, faced with a cuckoo,[www.Sentencedict.com] feeds a chick much larger than herself.
21 A cuckoo flew over, calling loudly, invisible above the canopy of leaves.
22 Careful timing by the cuckoo is important in another respect.
23 However, Edgar Chance showed that a cuckoo using a meadow pipit's nest is nearly always attacked while she is laying.
24 So, at this writing, we see the cuckoo pop out again.
25 Anyone who thinks this legislation will be effective is living in cloud cuckoo land.
26 The entire burden of hatching, feeding and caring for the young cuckoo falls on the hapless foster parents.
27 There was a grotesque inventiveness, a deliberate eccentricity in the idea of the cuckoo clock that Melanie had never encountered.
28 The truth is that, as she is laying, the cuckoo removes and eats one of the host's eggs.
29 If Kirov chose, he could drop Vologsky, and Operation Cuckoo, like a hot brick.
30 Melanie and Aunt Margaret sat in complete silence but for the ponderous ticking of the cuckoo clock and its regular two note interjections.