plural of running dog

(computing) A hacking session extended long outside normal working times, especially one longer than 12 hours; sometimes an all-nighter.

(firearms) A target that is towed across a range as the shooter shoots. / A goal that changes as effort is made to reach the goal.

A brief trip across a visited country's border in order to "restart the clock" on one's visa upon returning, where it would otherwise have expired.

(idiomatic) operational, in operation

(idiomatic) To act in an uncontrolled, unbridled manner. / (idiomatic) To be uncontrollable.

(idiomatic) To undergo a series of tests or challenges.

(transitive with to) To defy or oppose something, especially an expectation, custom, or social standard.

(idiomatic) To behave recklessly. / (idiomatic) To take a calculated risk. / Used other than figuratively or idiomatically: see run, scissors.

plural of run-on sentence