We have one member (or maybe he's a regular guest) who often posts requests for bawdy lyrics, and his messages always include the same "boilerplate" text: "Don't be offended, if you don't like this kind of stuff, don't read it," etc. He also always includes a link to his website, which features a collection of rugby songs, hash-house-harrier songs, and other risque stuff.

If you search out enough "bawdy" threads, I'm sure you'll come across some of his postings. Do check out his website, a real treasure trove of good old-fashioned naughtiness.