To manipulate an object, especially in a nervous or restless manner. / To adjust the position, as of an electronic device, in order to provide better reception or signal.

present participle of fiddle with

simple past tense and past participle of fiddle with

plural of fiddling

Engaged in financially dishonest behaviour.

(less common) Synonym of first fiddle

The fiddle part generally carrying the melody. / The player of the first fiddle part. / One who takes a leading part in anything.

(music) A fiddle part in harmony to the first fiddle. / (music) The person playing second fiddle. / (idiomatic) A sidekick or subordinate, or the role of such a person.

(intransitive) To trifle; to dally.

nonsense