windbag windbag {n.} Someone who talks too much; a boring person. Uncle Joe goes on and on; he is a boring windbag. Categories: add yours {n.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2025 To section: W Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Discuss