While I can find glossaries of Victorian, Regency, and twenties terms, I am having trouble finding them for 18th century France. In French or English or both is what I am looking for.
I found a few in French
Dictionnaire comique, satyrique, critique, burlesque, libre et proverbial 1786, this one is in multiple parts.
Dictionary of idioms, 1750
Slang dictionary The link says it's printed in 1740 which looks about right, but the text might be outdated since it's a reprint from the 17th century.