Writer keep notebooks because ideas arrive unexpectedly. Raymond Chandler kept two sorts of notebook – one to jot down daily events and work in progress; the other a lexicon of titles, words, puns, slang, similes, story ideas, observations, and first drafts.
Narcotics Squad Slang
gow—a dope, as “gowed up”
kick the gong around—use dope (Harlem)
pearl diver—dish washer
fancy pants—(verb) to act cagily or coyly
Hard Harry—a hard guy