In the latest episode of South Park, "Ass Burgers," Stan is diagnosed with Asperger's syndrome and Cartman opens a successful burger joint, Cartman Burger, after sticking burgers in his pants to pretend he has "ass burgers." And then ... their worlds collide.

There's more to it, but that's pretty much all you need to know. Watch the full episode at southparkstudios.com or some clips below.

There's A Disease Called Ass Burgers?

Burgers In Your Underwear?

The Secret Society of Cynics

What Makes Them So Good?!?

Showdown at Cartman Burger