You know, it really only works with ass, since that's another word for donkey. Instead of coming up with other words for ass, you should either use synonyms of donkey or of stupid (i.e., Burro Kong or Dullard Kong).
Also, the point of my post with all the pictures a couple pages back was that there's two very different Nintendo designs of DK, and the current one is really quite similar to the Rare designs.