cuckoo cuckoo /ˈkuːˌkuː/

noun

1. Any of numerous European and North American birds having pointed wings and a long tail  ( cuckoo )
   any of numerous European and North American birds having pointed wings and a long tail
   
   
2. A man who is a stupid incompetent fool  ( bozo , cuckoo , fathead , goof , goofball , goose , jackass , twat , zany )
   a man who is a stupid incompetent fool
     John's stubborn behavior earned him the nickname "jackass" among his friends.
   John's stubborn behavior earned him the nickname "jackass" among his friends.
   
   

verb

1. Repeat monotonously, like a cuckoo repeats his call  ( cuckoo )
   repeat monotonously, like a cuckoo repeats his call