دست روی دست گذاشتن و هیچ کاری نکردن ( معمولا وقتی منتظر رخ دادن یک اتفاق هستید )
to do nothing for a period of time, usually while you are waiting for something to happen
مثال:
I arrived early for the meeting so I was twiddling my thumbs for half an hour.
مثال: