diddle

/ˈdɪdəl/
verb
  1. To cheat or swindle someone out of something, usually money.
    • The con artist diddled the old man out of his savings.
    • They got diddled by a fake online store that never shipped the goods.
    • He tried to diddle the cashier by giving her counterfeit money.
  2. To waste time or fiddle with something in an aimless way.
    • Stop diddling with your phone and finish your homework.
    • She diddled with the radio dial until she found a good station.
    • He spent the afternoon diddling around in the garage.