by the Ramones
Correct me if I'm wrong, and if I am, I'll eat a bug, but here's what it means. Bonzo refers to the high point of Ronald Reagan's movie career, "Bedtime for Bonzo", wherein he takes care of a chimp. Bitburg refers to the time that Reagan, as President, went to Bitburg to pay an official visit to a cemetery that contained SS and other Nazis. A bit of a fiasco.