There is, or at least was, a website somewhere that was kind of like Babelfish, but for dialects instead of different languages. I don't remember whether you can input anything for "translation", but if not there is an extensive list you can look through.
Trouble is, I can't remember anything about the title. It's been on here before; does anyone else remember what I'm talking about, and can you find it?

Stop the presses! I found it--yay, Google!
The Dialectizer