The word "dally" primarily means to waste time or dawdle, often implying slow, leisurely, or playful behavior. It can also mean to deal with something in a non-serious or playful way, such as to flirt or toy with an idea or affections. For example, "Don't dally, we need to leave soon" means don't waste time, and "He likes to dally with new ideas" means he toy with or considers ideas lightly without commitment. Another usage is more old- fashioned, meaning to have a casual romantic or sexual relationship with someone.
