Diarrhea of a Wimpy Kid

On the way home from school on Friday, Kyle asked me what a "diarrhea" was? Hmmm... peculiar question. Before answering I asked him where he saw the word. He said it was the name of his book, "Diarrhea of a Wimpy Kid." After I peed my pants laughing, I clarified the title for him. He still says it wrong.