Slang for Magic Mushrooms. Magic mushrooms, or Shrooms are one of the only naturally occuring hallucinogens out there. They have similar effects to LSD, but are still VERY different. Mushrooms are far more intense than LSD IMO anyways. They contain psilocybin and psilocin, thats what gets you high. Dont do more than an 8th for your first time. Good luck Shrooming.
First time I ate shromes, I was watching south park and they were morphing into zombies. I reccomend watching the Detour on Teletoon, those shows are made for shrooms I swear.