There’s this joke that is impossible to relate in clean company, and I’m embarrassed to admit that I’ve heard it once in an unofficial (and perhaps counterfeit, although the voices and animation are spot-on) South Park clip of Cartman telling the world’s dirtiest joke.

Turns out that the Aristocrats joke makes the rounds, with comedians trying to top each other as to the disgusting content in the middle of the joke. Now they’ve made a documentary about it.

Some say it’s most surprising to hear Bob Saget tell the joke, because he’s thought to be a clean comedian, but I’ve seen the movie he directed, “Dirty Work”.