"Monkey Dust" is a 3 season 18 episode series of a compendium of animated shorts. The animation is cheery with the bright primary colors and jaggy moves of good computer animation, combined with revisited dark and perversely humorous themes which get revisited and played upon. Themes such as badly broken relationships, implied moronic violence, and skewed motivations are rapidly brought up and dispensed with. Characters are often killed a la "They've Killed Kenny!" (reference to Southpark. There are sometimes ideas buried in the mini-plots, there are some disturbing images, but within 60 seconds you'll be off to something else. There is political critique, social observation, but if you want to gaze thoughtlessly at the moving bright images, you'll know shortly whether this is the entertainment for you. Broadcast in the early 2000s, some of the presentations are understandably dated, particularly as regards homosexuality.
If you gathered from the above that the show is not for children, you are correct. Elementary school aged, preteens, should not be exposed to this.
Another show which is less in-your-face, wilder in themes, but has less perversity and reference to sex, and ranges deep into philosophical issues if you care to follow, but not totally unlike this show would be "Xavier, the Renegade Angel". If you like Monkey Dust, you might want to check it out.
