grandstand . grandstand {v.}, {slang}, {informal} To show off, to perform histrionics needlessly. Stop grandstanding and get down to honest work! Categories: add yours {informal} {slang} {v.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: G Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Add my comment