Fiddling
verb
To play aimlessly.
“You're fiddling your life away.”
To adjust or manipulate for deception or fraud.
“Fred was sacked when the auditors caught him fiddling the books.”
To play traditional tunes on a violin in a non-classical style.
Synonyms: fudge
noun
Action of the verb to fiddle
adjective
Of petty or trivial importance; footling
“It was a fiddling little fault, but ultimately proved disastrous.”