KOOK
Meaning of KOOK in English
/koohk/ , n. Slang.
1. an eccentric, strange, or foolish person.
2. an insane person.
[ 1955-60; perh. alter. of CUCKOO ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012