kam sau means animal or inhumane wong means king so kam sau wong means animal king...or king of the inhumane!!
HAHAHAH. ooh. clever. kam sau wong. devil queen? or something like that. don't know the exact translation of kam sau. haha. just read dreyvii's translation. nice! but i'm too lazy to delete + don't want to seem like spamming so i'll leave my original thought there.
Hmmm...I don't think been tai means the same as kam sau. Been tai means, erm...unreasonable/crazy? Haha...I don't think TVB even realises it...don't think they did it on purpose. But it does make a good laugh tho
it could be purposely done...still remember how they backward the word casino in dicey business and make it onisac?