To continue with this post... This "Froslass" got renamed like this when uploaded to the GTS in 5th gen in JP White 1 and 2, but it was blocked in English White. And this ペニス (means penis) got renamed like this when uploaded in English White, but instead of being blocked in JP White 2 it got renamed like this.
However, I was unable to nickname anything in JP White 2 inappropriate. ペニス was simply not allowed in-game, and while ぺニス! was allowed it did not trip the censor. If someone has name that would be allowed to be entered in JP B/W 1 and 2, yet trips the GTS censor I'd like to know. Otherwise the mismatch in the nickname and language cannot happen for 5th gen Japanese Pokémon.
And of course the mismatch in language and name can only happen if the OT name is the censored one. So for English it would be Shiro* or Kuro*.