Take a look at the comments section on cracked.com some time. They replace any string of characters that has an offensive connotation with a string of asterisks, but the filter isn't smart enough to tell if it's part of a larger word, so you get some pretty funny edits. The one that sticks out to me is any variation of the word "Japan" will have the first three letters censored, because "Jap" is a world war II era racial slur for the Japanese. I specify World War II era because these days, it has a second meaning as a shorthand way of distinguishing between international versions of media products; for example, Final Fantasy II Jap, as opposed to Final Fantasy II US. Granted, that's been shortened even further to "Final Fantasy II J in recent years, but it was pretty common around the time the real FF2 was first translated and brought to the US.