[mcdermott2]

Is there a definitive slang dictionary out there? I am never sure what slang is well known enough for inclusion in my puzzles.

One for-instance: does "Left-handed cigarettes" as a clue for REEFERS work?

[SJS]

I don't know if that clue works, but certainly the word works.  I thought it was a slang for marijuana joints.  The simple clue "Joints" would work.

I don't think there's a definitive dictionary, much less a definitive slang dictionary.  The ear test is probably the best guide.  If you've heard it and used it and know what it means, go for it.

[worldofcrosswords]

When I read your post, I recalled listening to a program about a slang dictionary on NPR. I think this is the story:
http://www.npr.org/templates/story/story.php?storyId=6383410
The book is "Slang: The Topical Dictionary of Americanisms" by Paul Dickson. I don't know if that would be what you want. Here's the author's website:
http://www.pauldicksonbooks.com/

I sometimes use Urban Dictionary (http://www.urbandictionary.com/). But the entries can be created by anyone; I usually find they are poor quality and have to double check them.

Marya

[mcdermott2]

Thank you for that. Paul Dickson's book, "Slang: The Topical Dictionary of Americanisms ", may be what I am looking for.