Quote by Raymond Chandler
I've found that there are only two kinds that are any good: slang that has established itself in the language, and slang that you make up yourself. Everything else is apt to be pass? before it gets into print.
Summary
This quote suggests that when it comes to slang language, there are only two types that hold value. The first is established slang, which has become widely accepted and integrated into the language. The second is creative slang that individuals come up with themselves. According to the quote, any other form of slang is likely to lose its relevance and popularity quickly, making it obsolete even before it can be documented in written form.