The most common slang names for Psilocybin mushrooms are Shrooms, fly agaric, liberty caps, magic mushrooms, or purple passion. Shrooms are hallucinogen. Obviously, mushrooms are a plant, and it is said that these mushrooms are a very spiritual experience when you take them. When you pick them, they can either be eaten raw, dried and stored for later, and some people decide to make them into a tea. When you dry them, it reduces the weight of the mushrooms, but not the potency. Mushrooms can only be eaten, or taken in a pill form. Some people decide to grind them up into a fin powder and put them in a pill. When you take them, you have the chances to have a good "trip", causing you to feel confident, relaxed, and in good spirits, or you could have a very scary bad trip. The short term effects of a trip are having a distortion of colors, sound, and time. Your senses can get mixed up, causing you to see sounds and hear colors, lasting up to 6 hours. As you cam imagine, in this state of mind, it can be very easy for you to have a dangerous, or even fatal accident. The long term effects are days, even as much as years after taking Shrooms, you can have flashbacks of your trip(s). You will experience the emotions you felt, or the thoughts that went though your mind. Its nearly impossible to overdose on shrooms, as they do not pose a very physical risk. The only thing is that other, more deadly shrooms can be mistaken for the hallucinogenic mushrooms, so it is advised against going to pick them yourselves. There are around 180 different types of the hallucinogenic mushrooms, with different amounts of the psychedelics psilocybin or psilocin.