Weirdest high I had was from taking Marinol (the synthetic THC pill). I took 5 pills in one night (spread out over a span of about 3-4 hours). I ended up getting so high that I was wildly hallucinating. I remember thinking I could see people's auras, and there was an incredible buzzing sound I kept hearing. Objects at times also appeared to float and walls seemed to breathe and melt.

One of my other friends took 4 marinols this same night. He claimed it was the highest he had ever been, but didn't experience the hallucinations I did.