Often when confronted with the oddities of the creative mind, regular joes will come across it and dismissively label it "drugs", as in "Shit, that dude must be on drugs, man." It's an easy way to deal with weirdness. Having said that, we're pretty sure was created for and by heavy drug use. We can actually smell the reefer humming from such concepts as a "mustardvark" from all the way over here. In QuickTime.

The Dinnerland Gang, ep1 [skitfaced] With thanks to Kirby