+1 for rename.
I'm not saying we need to be 100% family friendly but such nicknames are really childish and inappropriate. And no, just because it can theoretically mean something different in one random language that barely anyone knows (sorry Suomi) is not a reason to let it slide - pretty sure almost all english slurs have a non-offensive meaning in one of the 7000 existing languages, but that doesn't mean we should allow them. People should just grow up, calling your chars some slurs is a mentality of a 13 year old and should not be allowed.