Examples:

• Younger guests may let off steam in the playground.
• They can't let off steam with a good old row like you or I.
• Some people have to let off steam.
• And it looks like it's working giving all the boys a chance to let off steam.
• Good way to let off steam.
• If you have to do things to let off steam or for adventure, come and tell us about it.
• The evidence is fairly compelling that people need ways to let off steam. Music is a particular passion of mine.
• Most of the time, they're just a way to let off steam when parents have a bad day, don't feel well, or are under a lot of stress.
• After the argument with my parents, I called my best friend to let off steam.
• And now I'm going to let off steam, just for the change.