square off square off {v. phr.}, {informal} To stand ready for fighting with the fists. The two boxers squared off when the bell rang. Categories: add yours {informal} {v. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: S Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Post my comment