armed to the teeth armed to the teeth {adj. phr.} Having all needed weapons; fully armed. The paratroopers were armed to the teeth. 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 Add my comment