Definition of hippie in US English:

hippie

(also hippy)

noun

  • (especially in the 1960s) a person of unconventional appearance, typically having long hair, associated with a subculture involving a rejection of conventional values and the taking of hallucinogenic drugs.

    ‘hippies and spiritual seekers made their way to India in the sixties in search of enlightenment’
    flower child, bohemian, dropout, free spirit, nonconformist, unconventional person
    View synonyms

adjective

  • Relating to hippies or the subculture associated with them.

    ‘the birthplace of the hippie movement’

Origin

1950s: from hip + -y.

Pronunciation

hippie

/ˈhɪpi//ˈhipē/