They were April-fooling their classmates with a fake announcement about a surprise test.

He sent me on a series of fools' errands that wasted my whole afternoon.

Don't try to play for a fool me; I'm not that gullible.

During the meeting, he decided to act the fool to diffuse the tension and make everyone laugh.

At the summer fair, the judge pointed out the pig that was fat as a fool and awarded it first prize.

His fool-heartedness led him to sign the risky contract without reading it.

The old tales said fool killers roamed the countryside, punishing those who mocked wisdom.

While clearing the trail, the logger noticed a fool killer hanging over the path and warned the hikers to keep away.

Even in serious meetings, he sometimes plays the fool to lighten the mood.

Agreeing to work unlimited overtime for the promise of a vague promotion felt like a fool's bargain.