kook

名词 kook:

1. someone regarded as eccentric or crazy and standing out from a group
   同义词：odd fellow, odd fish, queer bird, queer duck, odd man out

kook

n.Slang （名词）【俚语】
A person regarded as strange, eccentric, or crazy.
怪人；狂人：被认为是奇怪的、怪异的或疯狂的人

来源：
Possibly from cuckoo
可能源自 cuckoo