I've had 6 edibles I made with a friend at once around a year ago, I was actually tripping off of just weed. Totally different from psychedelics or dissociatives though, far more sedate of course, most extreme couchlock I've ever experienced, I could barely talk, everything was very hazy & I was basically the deepest inside my head I've ever been.
Felt very similar to the earliest times I got high when I was 14 (which were quite trippy), yet more incapacitating even with my high cannabis tolerance. The only thing that would stop me from wanting to eat that much at once again is that my heart rate was hust about the highest it's ever been, higher than it is if I overdo amphetamines even.