Ohhh.... now I get it! Several years after reading Neal Stephenson's Zodiac, while driving to work and listening to a completely unrelated NPR station, my mind started to wander, and I suddenly got a major joke in the book. Pöyzen Böyzen is a heavy metal band! As in... heavy metal. You know, like the toxins that Sangamon hates.
You'd think that an intelligent person who had studied English Literature would have made this connection long before.