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2.
When you take Ecstasy and Shrooms at the same time.
I havent experienced it but I heard a hippy trip is some serious shit.
by xxDVDAxx October 20, 2005
 
1.
Consuming both LDS (acid) and Mushrooms at the same time. resulting in a triptacular experience.
Shit son, I would really love to hippy trip this weekend.
by Yolalala May 18, 2006