Wild Bob
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Billy Pilgrim
Quote 1
But the colonel imagined that he was addressing his beloved troops for the last time, and he told them that they had nothing to be ashamed of, that there were dead Germans all over the battlefield who wished to God they had never heard of the Four-fifty-first [...]
He said all this while staring into Billy's eyes. He made the inside of poor Billy's skull echo with balderdash. (3.25.3-4)
What is the "balderdash" that Wild Bob is spouting here? What kind of comments might the narrator be making about Wild Bob's heroic speech to his imagined regiment?