Green’s Dictionary of Slang

eccentric with added overtones of hippiedom.

1973		A. Koestler Call-girls 118: Astrology, Maharishi, hippy-trippy, hash and mish-mash!
1982		A. Livia Relatively Norma 156: But the hippy trippy honesty sounded stale as soon as it left Minnie’s mouth.
1996		A. Kopkind Thirty Years’ War 224: I knew she didn’t mean it in the simple hippy-trippy way.
2000		J.J. Connolly Layer Cake 211: I bet Eddy fuckin Ryder’s got the trippy-hippie, make-believe eastern-mystic wife parked up at home.
2005		Time Out Amsterdam 186: This week-long festival of art, music and theatre captures the hippie-trippie-bongo-playing-spliff-smoking-we-are-all-one-big-happy-family vibe.