Bill and I have an annoying tendency to speak in references. It's kinda like that episode of Star Trek: The Next Generation where the crew goes to this planet to answer a signal from the Children of Tama, a race with whom the federation could not communicate because their language was "incomprehensible." Turns out, though, that their language was composed entirely of references to mythology and stories. By comparing their situations to those of characters in the stories, they are able to communicate. Shaka, when the walls fell" refers to a story about a city being destroyed, and in the context of this episode, refers to a sense of impending doom or demise.
     Bill and I speak like this a lot, often just quoting a movie or a TV show to express what we're thinking. When Kelly came over about a week and a half ago, Bill and I had been living together for about 3 weeks and were pretty much making the same references all the time. It was like our language. And then, as I'm rubbing her back (she's a glutton for back rubs, really... not that I mind giving them :) ), and as Bill and I are making dueling Strongbadia references, she's looking at us like we've each got 2 heads. So Bill fired up the Stronbad e-mail about Flag Day and Kelly now understood, but thought we were loonier than she did before. Oh well, at least it can't rain all the time.