|Origin:||Probably copying the action|
twid‧dle [intransitive and transitive]
to do nothing while you are waiting for something to happen:
Let's go - there's no point in sitting here twiddling our thumbs.
to move or turn something around with your fingers many times, especially because you are nervous or bored
She was twiddling with her earrings.
—twiddle noun [countable]