in a rut prepositional phrase2 •(informal) To be stuck in a boring or monotonous routine or habit.If you feel your life's in a rut / Just come on out tonight, and we'll pull you up / Ain't no use in dragging your feet / 'Cause something's in the air that just can't be beat — 1981 •(informal) To be overly fixated on one activity, job, or method.
