twiddle one's thumbs
BE IDLE, kick one's heels, kill time, waste time, hang around/round, hang about

[TahlilGaran] Dictionary of Contemporary English ▲

twiddle thumbs
twiddle (your) thumbs
to do nothing.
Dan spent a whole day twiddling his thumbs, waiting for a package to be delivered.

[TahlilGaran] English Idioms Dictionary ▲

twiddle one's thumbs
to do nothing, to be idle; to not be busy, to not be working
The girl twiddled her thumbs all year and is now unable to pass her school exams.

We twiddled our thumbs all morning and did not get any work done.

[TahlilGaran] English Idioms Dictionary ▲

twiddle one's thumbs
v. phr. To do nothing; be idle.
I'd rather work than stand around here twiddling my thumbs.

[TahlilGaran] English Idioms Dictionary ▲