It may not be as aberrant as MeatCanyon, but I would say that Felix Colgrave is defining his own genre enough to be considered weird.
Especially his earlier stuff very much has that old school net sensibility about it. (Although he's talented and polished enough that it's not _quite_ the same amateur vibe of those early Newground days).
Another source of phenomenally cool and interesting "content" is the Adult Swim Off the Air series, which also has a very psychedelic vibe to it. The series collects a wide variety of really awesome animations (and also lots of silly stuff).
Probably my favorite thing to ever come from the Off The Air oeuvre is the animated music video for Dan Deacon's song When I Was Done Dying[1]. They also did a 20 minute special episode featuring Dan Deacon's music which is extremely cool[2]. I was exposed to so much cool stuff via Off The Air, the first episode is still one of my favorite ten minutes of weirdness[3]. There are so many other great episodes, too, if you like this kind of thing.
[1]: https://www.youtube.com/watch?v=59QBOO6m210