kook
noun/kuːk/
/kuːk/
(especially North American English, informal)- a person who acts in a strange or crazy way
怪人;狂人 - He was dismissed as a kook for saying what he thought.
他因说出自己的想法而被斥为怪人。
Word Origin1960s: probably from cuckoo. - He was dismissed as a kook for saying what he thought.