We found a filter that another large company used which contains thousands of words that we're having to reduce over time as we find ones that aren't appropriate to sensor. If you can imagine, as an indie team it doesnt make a lot of sense to put someone on creating a list of words from scratch as there are bigger fish to fry, haha! Plus I don't think anyone needs to hear some of the terms put into these filters.
Your example for instance shouldn't exist and I've gone ahead and removed that now so it shouldn't be filtered in the next patch release. Thanks, Pkirish!