Oh my fucking God. This movie is so fucking dirty. The title only captures it a little. But it's John Waters, so if you weren't expecting raunchy material, then you probably have never seen one of his films...
Anyway, Tracy Ullman and Johnny Knoxville are in it, and they both give VERY memorable performances. I would say that Knoxville's "Ray Ray" is his best performance of his career, including Jackass.
Plot wise, there's nothing special...people living on Harford Road in Baltimore are fed up that the neighborhood is becoming a slut haven, and they want supress everybody's sexuality. It's all raunchy humor, but there's a good running joke about Baltimore and DC.
If you live near Baltimore, you should definitely take the opportunity to see it. It's playing at the AMC in Owings Mills. For the rest of you, you will have to wait a couple months for it to be out on DVD.