dope out dope out {v.}, {slang} To think of something that explains. The detectives tried to dope out why the man was murdered. Syn.: FIGURE OUT. Categories: add yours {slang} {v.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2025 To section: D Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Leave my opinion