Xlit.... Alit.... Blit.... Hmm

Remember that SNL skit about the trains where they rearranged the letters on their shirts?

You could do something like that such that when you put your characters in a certain order it spells something mundane but in another order it is actually quite /rude to the other faction.

Or you could break up the words in your character names such that half of each name is offensive but when you put them together it is /rude.

Scr Eew Youu Allian CeSkum