slouch āļāļ·āļāļāļ°āđāļĢ slouch āļāļ·āļāļāļ°āđāļĢ To sit, stand, or walk with an awkward, drooping, excessively relaxed posture.To droop or hang carelessly, as a hat.To cause to droop; stoop.An awkward, drooping, excessively relaxed posture or gait.Slang An awkward, lazy, or inept person: good at chess and no slouch at bridge, either.