rag trade . rag trade {n. phr.} The clothing industry. My brother is working in the rag trade, manufacturing dresses. Categories: add yours {n. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2025 To section: R Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Discuss