slip away slip away {v. phr.} To leave unnoticed. The party was such a bore that we decided to quietly slip away. Categories: add yours {v. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: S Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Comment on this entry