I would agree with everything Jeff has mentioned. I would also add that reversing, and/or smearing the word has been done as well. I have also heard versions where they cut out just the offensive word in such a way as to make it very evident they cut it. "Sober" by Tool would be a good example of that method. "What It's Like" by Everlast is another prime example of a quite noticeable edit. Hope that helps!