Fourteen-year-old Harry from Charlotte, Vermont, asks why we say something is clean as a whistle. The phrase refers not to a physical whistle, but to the purity of the sibilant sound. This is part of a complete episode. Transcript of “As Clean...
If something’s clean as a whistle, that doesn’t mean it’s shiny and spotless like a silver whistle in a referee’s mouth. The idiom refers to a whistling sound: That piercing noise is super-bright and finely edged on the ear...