He wastens his time on unnecessary tasks.

She is wastening her time on social media.

There are too many oxygen wasters in this room.

He is such an oxygen waster.

My friend's last name is Wasteneys.

This wasteproof container is perfect for storing leftovers.

The candle-wasters left all the lights on in the house.

He is a candle-waster.

I baked a delicious wastel cake for the party.

I bought a loaf of wastel bread from the bakery.