twiddle one's thumbs
Fig. to pass the time by twirling one's thumbs. What am I supposed to do while waiting for you? Sit here and twiddle my thumbs? Don't sit around twiddling your thumbs. Get busy!
twiddle one's thumbs
Be bored or idle, as in There I sat for three hours, twiddling my thumbs, while he made call after call. This expression alludes to the habit of idly turning one's thumbs about one another during a period of inactivity. [Mid-1800s]
twiddle (one's) thumbs
To do little or nothing; be idle.
twiddle one's thumbs, to
To be bored; to be idle. The habit of idly turning one’s thumbs about each other during a period of enforced inactivity gave rise to this cliché, which began life in the mid-nineteenth century. “You’d have all the world do nothing . . . but twiddle its thumbs,” wrote Douglas Jerrold (Mrs. Caudle’s Curtain Lectures, 1846).