cash crop cash crop {n.} A crop grown to be sold. Cotton is a cash crop in the South. They raise potatoes to eat, but tobacco is their cash crop. Categories: add yours {n.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: C Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Add my comment