"You're Stan." Sam remembered Butters mentioning Stan's name during some of the...really weird (and from him, that was saying something) stories about Butters had.

"Which means you know the hated Cartman guy too," Sam deduced. "He that much of an ass or is Butters just exaggerating to get my sympathy?"

He didn't think anyone could exaggerate those stories but, well, he was a smartass sometimes.