fiddle around

a musical instrument of the viol family.

violin: Her aunt plays first fiddle with the state symphony orchestra.

Nautical. a small ledge or barrier raised in heavy weather to keep dishes, pots, utensils, etc., from sliding off tables and stoves.

British Informal. swindle; fraud.

to play on the fiddle.

to make trifling or fussing movements with the hands (often followed by with): fiddling with his cuffs.

to touch or manipulate something, as to operate or adjust it; tinker (often followed by with): You may have to fiddle with the antenna to get a clear picture on the TV.

to waste time; trifle; dally (often followed by around): Stop fiddling around and get to work.

British Informal. to cheat.

to play (a tune) on a fiddle.

to trifle or waste (usually used with away): to fiddle time away.

Bookbinding. to bind together (sections or leaves of a book) by threading a cord through holes cut lengthwise into the back.