Mess around Definition 1 of 3Pro Tip 1/3Lack of Productivity Indicates unproductive use of time, often in a relaxed manner. I could have studied, but I just messed around all afternoon. Pro Tip 2/3Leisurely Activity Used for leisurely activities with no specific goal, just for fun or relaxation. We were just messing around in the pool, nothing serious. Pro Tip 3/3Unstructured Exploration Can suggest experimenting or exploring something without commitment. She's messing around with painting, but isn't sure she'll stick with it.