all set . all set {adj. phr.} Ready to start. "Is the plane ready for take-off?" the bank president asked. "Yes, Sir," the pilot answered. "We're all set." Categories: add yours {adj. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: A Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Comment on this entry