LSD trip

A LSD Trip is when you take LSD and 'trip'. When somebody says they are tripping, this means that they're hallucinating. If it's a good trip, the person will spend most of his/her time watching colors fly around them while laughing or looking amazed. If it's a bad trip, the person could be filled with fear and anxiety. It's amazing how a trip can go from good, to bad, and even back to good very suddenly.