English version

kook

From Longman Dictionary of Contemporary Englishkookkook /kuːk/ noun [countable] American English informal  CRAZYsomeone who is silly or crazykooky adjective
Examples from the Corpus
kookSome kook at the post office makes you sing for your packages.
Pictures of the day
Do you know what each of these is called?
Click on the pictures to check.
Word of the day luck out to be lucky