junked up junked up {adj.} or {v. phr.}, {slang}, {drug culture} To be under the influence of drugs, especially heroine. You can't talk to Billy, he's all junked up. Categories: add yours {adj.} {drug culture} {slang} {v. phr.} 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