fall to pieces . fall to pieces {v. phr.} To disintegrate; collapse. After the death of Alexander the Great, his empire started to fall to pieces. Categories: add yours add yours death {v. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2025 To section: F Subscribe to: American Idioms► Also consider the parent subscriptions (3)Idioms feedEnglish languageHome page and general feed Add my comment Add my comment