"Fiddling about" refers to wasting time or engaging in frivolous or unproductive activities. Synonyms for this phrase include dawdling, idling, loafing, puttering, goofing off, and messing around. Other similar phrases include twiddling one's thumbs, wasting away, frittering away, and daydreaming. These words and phrases suggest a lack of focus or direction, and may be used to describe someone who is procrastinating or simply not taking their responsibilities seriously. It's important to stay focused and productive, so next time you catch yourself fiddling about, try to refocus your efforts and channel your energy into something more meaningful and productive.