penny for one's thoughts . penny for one's thoughts Please tell me what you are thinking about; what's your daydream. "A penny for your thoughts!" he exclaimed. No categories: add yours add yours Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2025 To section: P Subscribe to: American Idioms► Also consider the parent subscriptions (3)Idioms feedEnglish languageHome page and general feed Post my comment Post my comment