brainstorm brainstorm {n.} A sudden insight; a stroke of comprehension. Listen to me, I've just had a major brainstorm, and I think I found the solution to our problem. Categories: add yours {n.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: B Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Add my comment