take a nose dive . take a nose dive {v. phr.} To plummet; fall sharply. The stock market took a nose dive after the news of the President's heart attack. Categories: add yours nose {v. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: T Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Comment on this entry