steam up
Verb
Meaning
To become steamy.
To become coated with condensation. To fog up.
The bathroom mirror steamed up when he opened the shower door.
To bring (a steam boiler) up to working steam pressure.
It takes about an hour to steam up the locomotive.
Synonyms
Related terms
Examples
The German Emperor is ageing me; he is like a battleship with steam up and screws going, but with no rudder, and he will run into something some day and cause a catastrophe.
If your baby has a hard time feeding because of a stuffy nose, turn on the shower to steam up the bathroom and feed her there.
The windows steam up and the house smells like a storm.
This passionate pose will really steam up your bathroom mirror.