well my usual is too rude for this site but lets say it begins with an F that or in an effort to cool my swearing down a bit (I really do swear too much) I replace the F word with another F word, I use words picked up from sci-fi novels (such as the Gaunt's Ghosts books by Dan Abnett or the saga of the seven suns by Kevin J Anderson) where the authors for whatever reason make the effort to conceal the words fairly bluntly (if you can't tell what I mean then well read one of those books I mentioned) so right about now my favourite words seem to be Feth and Shizz