George learns how to sing the blues, with inspiration from his giraffe dummy and Brain's CDs. While on a shopping trip with Grandma Thora, D.W. overhears a teenage boy curse at his mother, causing her to drop a glass and break it. D.W. wants to know the meaning of the word, but she is afraid that if she says it, something will break. She tests this on Vicita, only to get in trouble, but her mother does not punish her because she does not know what the word means.