Jocularly used for: A leg. Chiefly in to stir one's stumps, to walk or dance briskly, †to do one's duty zealously.

transitive. to leg it. To travel or move by foot; to walk or (now esp.) run. Cf. leg, n. 1b.

intransitive. To skip, trip, walk, or run rapidly; to hurry. Also with it.

colloquial. To run, walk, etc., at great speed.

Originally Navy. To get out of bed, esp. in order to perform a task or in readiness for the day ahead.

colloquial. to go the pace: to move at great speed in the course of a hunt, race, etc.; (hence) to proceed in a vigorous, energetic, or…

Of a horse: To go at a good pace. Also ocularly of persons. Cf. to step out at phrasal verbs 1.