Here is an interesting word that Sherlock Holmes used to describe Dr Watson in The Valley of Fear, one of the The Greatest Adventures of Sherlock Holmes. I wasn’t fully able to grasp the meaning of the word by the context, so I had to look it up. Now I find the context that much more enlightening and certainly more humorous.

Pawky – having a mocking or cynical sense of humor

Usage: Holmes says to Watson, “You are developing a certain unexpected vein of pawky humor, Watson, against which I must learn to guard myself.”