fall down on the job fall down on the job {v. phr.}, {informal} To fail to work well. The boss was disappointed when his workers fell down on the job. Categories: add yours {informal} {v. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: F Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Post my comment