jake flake . jake flake {n.}, {slang} A boring person whose company is usually not wanted. Please don't invite Turner, he is a jake flake. Categories: add yours boring {n.} {slang} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 » In RussianTo section: J Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Post my comment