No. The problem with baking this directly into LimeLM is that everyone on our team only speaks English (me, my cofounder, and our contractors). So we could get a good list of about a dozen or so vulgar American English words, but we'd be missing British English slang and all non-English slang & vulgarities.
We could add a custom filter list to LimeLM. Is this something you want? This way if the keygen generates a vulgar sequence it would try again until it generated a clean sequence.