keep a straight face

Idioms  

1. Don't show one's feelings, especially refrain from laughing. For example, The school orchestra played so many wrong notes that I had trouble keeping a straight face. [Late 1800s]

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Example Sentences

I have to fight to keep a straight face.

From Literature

This is so obviously a market mania that I honestly don’t know how anyone on the Street of Shame can say otherwise and keep a straight face.

From MarketWatch

The world’s leaders—friends, foes, and those in between—keep a straight face at all this.

From Slate

It was very difficult to keep a straight face because we just played it as seriously as we could, and we’re like, “Should we make a procedural crime show? I think we might have to.”

From Los Angeles Times

You can’t keep a straight face with him.

From Los Angeles Times