Wildest recent ones were nightmares. Some highlights:
Met a drop-dead gorgeous woman, and we spend the day going around town and having a great time. We open the door to one shop, and it's a backstage area of some kind. There's a horrible realization that the whole town, our experience and the experience of everyone else was actually part of a CCP propaganda film about agricultural output (??). Upon this realization, everyone starts wailing out of existential horror. I turn to the woman, and she is also wailing, but now she is a wizened elderly Chinese lady. She turns to me, suddenly gives a horrible smile, and starts laughing manaically. Cue wakeup.
In a creepy forest of some kind, where I find this big ominous looking machine. Stuff happens and I end up on top of the machine. There is some creature on top with a horrible grin, who presses a button. An X shaped port opens up like a ... well, imagine someone has a scab and they start to expand, tearing it open to reveal the interior of the wound, a mix of blood and viscera and fire and screaming. I look up from gazing into this and the creature, still smiling, has my right arm in one hand and a knife in the other. Still smiling, looking directly into my eyes, it runs the knife down my arm to let the blood drip into the machine wound. I felt every part of that knife. Cue wakeup.
The combo of recent decisions to divorce due to a partner's cheating, REM rebound from taking a break from weed, and deep horniness due to vacationing at a friend's apartment who made you promise you wouldn't masturbate is one I would not recommend to anyone who doesn't like amazing horror movie level dreams. Wake up experience was "OMG what in the actual fuck was that!?", followed shortly after by "These would've been dope as fuck if I saw them on a theatre screen."
Oh, there's also one from many years back that starts with a bus trip from a creepy carnival and ends, narrative period of a few weeks later, sitting on the throne of hell holding Satan's head with legions bowing, but I'll save that one for another day.