fiddle about (withsomeone)

fiddle around (with someone) & fiddle about (withsomeone)

to tease, annoy, or play with someone; to waste someone's time. •

All right, stop fiddling around with me and tell me how much you will give me for my car.

•

Now it's time for all of you to quit fiddling around and get to work.

•

Tom, you have to stop spending your time fiddling about with your friends. It's time to get serious with your studies.