It's often a source of great amusement for me how dirty songs could be in the past. Not to say that there isn't plenty of smut in today's music. (As an amusing aside, a friend of mine who is a school teacher wanted to play hip-hop for his students as part of a cultural appreciation lesson plan and after much digging could not find a single track without some kind of obscenity marring its suitability for the chil'rens... not even in "indy" or "conscious" rap.) But somehow, it just seems so much more transgressive in the context of music from bygone eras. When stuff got bawdy back then, it felt more like an opening of the curtain on a common parlance that was normally supressed whereas today's dirty music seems to mine salaciousness for shock value and make a show of its oppressive rudeness. I guess what I'm trying to say is that older tracks that contain cursing or that work blue seem much more innocent, like the musicians were just cutting loose after the session and didn't realize the tape recorder was on.
The great mp3 blog, Boogie Woogie Flu has a 45 from 1957 by a singer named Mercy Baby called "Silly Dilly Woman." And while it's never nice to call a lady a slut, a cunt, or a whorebag, Mercy Baby seems to get a lot of mileage out of referring to the bitch in his life as a "hole." Enjoy.