futz

/fʌts/
verb
  1. To waste time or spend time doing something in an aimless or unproductive way.
    • Stop futzing around and finish your homework.
    • He spent the whole afternoon futzing with the settings on his new phone.
    • I futzed around the house all morning instead of going to the gym.
  2. To tinker or make small adjustments, often without a clear goal.
    • The mechanic futzed with the engine for an hour but couldn't find the problem.
    • She futzed with the antenna until the picture on the TV became clear.
    • Don't futz with the thermostat; it's set correctly.