real thieves cant

http://www.blackmask.com/books82c/dcvgr.htm
weird stuff in here like bull and bear market ref's. Plus some interesting social slang that influences us today. Check it out if yer bored, or not bored but interested. Its not the oldest book on cants and crytospeak but it's interesting. I guess it was a fad in the 17th century or something like it.