In Windows, the condition or state in which both Windows and the application have processed all pending messages in the queue from user- or hardware-initiated events and is waiting for the next event to occur In Windows NT multiprocessing, one idle thread exists for each processor
If an engine or vehicle is idling, the engine is running slowly and quietly because it is not in gear, and the vehicle is not moving. Beyond a stand of trees a small plane idled
ISO ILL status The request is new and has not been authorized by staff at the requestor location
inactive or ineffective, as in: She works all the time; I've never seen her idle
{f} loaf, lounge, do nothing, laze around; waste time; operate at minimum speed (of an engine or machine)
If machines or factories are idle, they are not working or being used. Now the machine is lying idle
To spend in idleness; to waste; to consume; often followed by away; as, to idle away an hour a day
You refer to an idle threat or boast when you do not think the person making it will or can do what they say. It was more of an idle threat than anything = empty