square up square up {v. phr.} To liquidate debts and other obligations. I want to square up my medical bills before I accept my new teaching assignment in Africa. Categories: add yours {v. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 » In RussianTo section: S Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Comment on this entry