名詞 kook:

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

kook

n.Slang （名詞）【俚語】
A person regarded as strange, eccentric, or crazy.
怪人；狂人：被認(rèn)為是奇怪的、怪異的或瘋狂的人

來源：
Possibly from cuckoo
可能源自 cuckoo