loon
Word family nounloonieloonlooning
loon /luːn/ noun [countableC] 2. STRANGE informal a silly or strange person – used humorously 傻子;怪人〔幽默用法〕 Origin loon 1. (1600-1700) From a Scandinavian language.
2. (1600-1700) loun “bad person” ((15-19 centuries)) (influenced by
→ LOON1 (because of its wild sound) and by
→ LOONY1)