knock over knock over {v. phr.} To overturn; upset. I accidentally knocked over the Chinese lamp that fell on size floor and broke. Categories: add yours {v. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: K Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Leave my opinion