sellout sellout {n.} 1. A betrayal or act of treason. The spy's behavior during the Cold War was a classical sellout. Categories: add yours {n.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2025 To section: S Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Post my comment
