I came across this story in the August, '05 issue of Vanity Fair (a great magazine in terms of breadth of topics and depth of coverage on those topics). Penn Jillette (of Penn &Teller) and comedian Paul Provenza are about to release The Aristocrats, essentially a documentary about one thing: a joke so disgusting and in such poor taste that you don't know whether to laugh or be offended.
The angle that is unique here is the fact that the telling of the joke is a sort of rite of passage for comedians, and the movie captures the veritable who's who of Robin Williams, Steven Wright and even Bob Saget (plus many other BIG names) telling their version of the joke.
The movie is one part slice of disgusto life and one part story behind the story of the telling of the joke and its place in comedian hazing and acceptance. Three links to help frame if it's something of interest to you.
One is an interview with Penn Jillette and Paul Provenza, makers of the film.
Two is a Southpark version of the joke (Southpark Aristocrats)
Three is Taylor Negron refusing to share his version of the joke in Defamer. Supposedly, his version sets the bar, so to speak.
