play around phr v [I] 1informal to have a sexual relationship with someone who is not your husband or wife 【非正式】 乱搞男女关系，通奸 2 to spend time playing games or behaving in a silly way 玩耍; 胡闹: I wish those kids would stop playing around outside our house. 我希望那些小孩别再在我们的屋子外面瞎胡闹了。