While reading The Maltese Falcon, I have come across an invaluable tool for those who, like me, don’t have English as their first language. I do hope it will be of your interest.
For example:
Baumes rush: Senator Caleb H. Baumes sponsored a New York law (the Baumes Law) which called for automatic life imprisonment of any criminal convicted more than three times. Some criminals would move to a state that didn’t have this law in order to avoid its penalty should they be caught again, and this was known as a “Baumes rush,” because of the similarity to “bum’s rush.”
(Source: Twists, Slugs and Roscoes: A Glossary of Hardboiled Slang (Last modified: 25 May 2016) Compiled by William Denton <wtd@pobox.com>. Copyright © 1993-2009. CC-BY.. Edition 3.9.4. Version 4.0 is planned. Originally published as a pamphlet by Miskatonic University Press, 1993, here)
A Crime is Afoot 
I’m British AND English is my first language: and hardly “hard- boiled” enough, have found this glossary very useful.