in one's cups in one's cups {adj. phr.}, {literary} Drunk. The man was in his cups and talking very loudly. Categories: add yours {adj. phr.} {literary} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: I Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Comment on this entry