I laughed when I saw this bumper sticker on a car today. I think you need to know the book, Deliverance, or the movie by the same name, to appreciate this. The book by James Dickey came out in 1970, when I was fourteen. I read it a couple years later and found it an enjoyable read.
Then the movie came out. I thought it was faithful to the book, and was impressed that the movie seemed as good as the movie.