I'm not sure if your question was tongue-in-cheek, but a k-hole (high ketamine dose) is also considered by some to be a psychedelic experience. It was (is?) com

I'm not sure if your question was tongue-in-cheek, but a k-hole (high ketamine dose) is also considered by some to be a psychedelic experience. It was (is?) common in the rave culture to do exactly what you describe.