make or break . make or break {v. phr.} To bring complete success or failure, victory or defeat. Playing the role of Hamlet will make or break the young actor. Categories: add yours success {v. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: M Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Add my comment