hippie
noun [ C ] (also hippy) uk/ˈhɪp.i/ us/ˈhɪp.i/
嬉皮士（尤指20世纪60年代末至70年代初信仰和平、反对传统观念的年轻人，留长发，常群居并吸毒）
a person, typically young, especially in the late 1960s and early 1970s, who believed in peace, was opposed to many of the accepted ideas about how to live, had long hair, and often lived in groups and took drugs
Synonym: flower child