Be sure you mean what you say!

Sometimes in creative writing slang is a good way to make your point.  Sometimes it is not even slang but more a figure of speech.  One day I wanted to use one such figure of speech and googled the phrase to make sure I was using it for its correct meaning.    To my surprise (more shock) the phrases meaning had been hijacked by the street to become something quite different than I had thought.  When I asked my teenagers the meaning of the phrase it confirmed what I had found and I opted to use different wording in my article.    There is one dictionary I have started to look at and it is not for the prim and proper.  As a matter of a fact I try to spend as little amount of time as possible there but I am finding it a necessity at times to take a look.    Have you ever happened on the Urban Dictionary?  Now don't go craze here - there is a lot of good common phrases that just because they say it means some new 'bedroom trick' doesn't mean it is in the mainstream of thought.   I just believe as a writer before you think you are going to coin a new phrase it might be a good idea to see if someone has beat you to the punch.