Late in the series, an extremely obscure joke ancient Japanese wording was made. It was so obscure that the next few lines were dedicated to explaining it to the audience. When translated to English, the same joked remained, but added an extra layer with the last two lines of the dialouge:
That episode is funnier when you realize that it was written by the same guy who wrote The Slayers. Seriously, give that guy a pen and paper and the first thing he'll do is write culinary humor.