We have gotten a couple of reviews for The Gentleman and The Rogue and one person wondered if the slang we used was real.
I fished all the phrases from this great book.
I recently also bought these volumes online. The good thing about this slang dictionary is that it has the dates of usage listed. Trouble is---as Erastes (who frequently shows up at this site) pointed out---you have to know the phrase you're looking. Can't go looking for a common word (something like"leg") and find its various nicknames.
But that means I have an excuse to just sit and flip through these things looking for fun words.
Jeez, I love this stuff.