I admit that it was a bit hard to get some of these jokes. It's mostly because I'm American. I don't understand the "butt" one especially. I think In Your Endo was a joke already done on "Scrubs". Oh well. At least it wasn't as disgusting as most of your other things.
I thought the animation was just okay here. Nothing really stands out. I'm used to your songs more. That's kind of weird for me to say, seeing as how they're usually disgusting.