Cartman and the gang return for the season half of South Park's 15th season. The returning episode? Ass Burgers, in which Cartman is diagnosed with Asperger's Syndrome.

South Park Season 15 Episode 8 Quotes

Nurse: Why are there hamburgers in your underwear?
Cartman: Are you serious? You're saying I have Aspergers?

That's just your brain levels adjusting back to the real world.