The phrase "gad about" refers to someone who tends to move around frequently without any specific purpose or goal. There are several synonyms that can be used to describe this behavior, including wanderer, roamer, traveler, wayfarer, drifter, nomad, and adventurer. Each of these terms implies that the person is constantly on the move, often exploring new places and experiencing new things along the way. While some might view this kind of behavior as aimless or frivolous, others see it as a way to gain new insights and perspectives on the world around them. Whatever the case may be, there's no denying that becoming a gad about can lead to some pretty amazing adventures and life experiences.