Jack around Definition 1 of 2Pro Tip 1/3Work Context Used to tell someone to stop procrastinating and start working seriously. The boss noticed we were jacking around and reminded us about the deadline. Pro Tip 2/3Casual Warning Can be a friendly nudge to focus on important tasks instead of wasting time. You'll miss the train if you keep jacking around! Pro Tip 3/3Time Sensitivity Often implies there's a limited amount of time to finish something. With exams tomorrow, there's no time to jack around.