Top Definition
The active chemical in magic mushrooms that produces hallucinations.
Magic mushrooms contain ample psilocybin.
by Tanguara February 21, 2003
A hallucinigenic compound found in various strains of magic mushrooms (native to many countries in England). Very potent, producing an intense trip. Typically, the trip lasts around 4-6 hours. It is a psychedelic trip with many colors and shape shifting, ect. Often one will have a rather philosophic come down (the stage of the trip where the effects are wearing off).
Mexican Psilocybe Cubensis
by Cory H April 28, 2005
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