0 present participle of twiddle --
1 to move something repeatedly between your fingers, especially without any purpose: --
He is twiddling his thumbs, waiting for the recession to come to an end and hoping that he can survive it.
They sit around twiddling their thumbs, producing for consultation measures that we have seen time and again before.
When people cannot be employed there, they sit in the hills twiddling their thumbs and get up to mischief.
In silent meditation, or in merely twiddling their thumbs in some office or another?
Was he to stand twiddling his thumbs doing nothing, when face to face with revolution?
In the war people were ready to crouch over their sets, twiddling the controls to capture and hold the signal.
Also, is that not a waste of expensive surgeons' operating time when they are twiddling their thumbs?
That is a ludicrous state of affairs, because it leaves expensive highly trained surgeons twiddling their thumbs rather than operating on patients.