1. [noun] (1950s slang) A teenager who imitated the beatniks.
2. [noun] (1960s slang; still widely used in reference to that era) One who chooses not to conform to prevailing social norms: especially one who ascribes to values or actions such as acceptance or self-practice of recreational drug use, liberal or radical sexual mores, advocacy of communal living, strong pacifism or anti-war sentiment, etc.
3. [noun] (modern slang) A person who keeps an unkempt or sloppy appearance and wearing unusually long hair (for males), and because of it, often stereotyped as a deadbeat.
4. [noun] Someone who dresses in a hippie style.
5. [noun] One who is hip.
6. [adjective] Of or pertaining to hippies: e.g., ?the hippie era?.
7. [adjective] (colloquial) Not conforming to generally accepted standards.
8. [noun] Someone who rejects the established culture; advocates extreme liberalism in politics and lifestyle.