Idling

It is impossible to enjoy idling thoroughly unless one has plenty of work to do.

My son is just idling.

Idling away your time is not good.

He is always idling about and good for nothing.

The engine stopped while it was idling.

This machine is idling.

Hey, dumbass, don't just sit there with your car idling for no reason.

If you have but an hour, will you improve that hour, instead of idling it away?

Felix got back into his idling truck to be in the warmth.

Citizens typically run the air-conditioning all year, throw out plastic utensils with daily boxed lunches and leave their cars idling at the curbside.