definition of
cuckoo

[1] #1 cuckoo n. [fathead, goof, goofball, bozo, jackass, goose, twat, zany] a man who is a stupid incompetent fool. wn

[2] #2 cuckoo v. repeat monotonously, like a cuckoo repeats his call. wn

[3] #3 cuckoo n. any of numerous European and North American birds having pointed wings and a long tail. wn