I'm talking about how the Horde-faction Pandaren, Huojin, so conveniently have a leader by the name of Ji Firepaw.
I mean seriously, with a first name two letters short of being the object highly discussed in one of Lonely Island's most popular song and a last name denoting having a limb that's on fire, I guess we all can safely assume the reason why the Jin is on Huo.
I'm sorry for being vague, don't really want to risk myself getting banned. =P
But anyway, just to elaborate further:
Huo = Literally Fire in mandarin.
Jin = Literally essence/spirit in mandarin.
Which is aptly named because the Huojin Pandarens are red and took care of the dwelling place of Huo, the Spirit of Fire.
However, Jin can also mean something more... naughty... if you know what's the alternative meaning, you would be able to understand what I'm saying.
Anyway Blizzard, intentional or not, gg. =)