April Fools' Day

American  

noun

1. April 1, a day when practical jokes or tricks are played on unsuspecting people.

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Etymology

Origin of April Fools' Day

First recorded in 1745–50; the variant All Fools' Day is first recorded in 1700–05

Example Sentences

"From all other days, they chose April Fools Day," Miss Wandelt said.

From BBC

Every year, journalist Ben Black publishes a playful fake story on his community news site Cwmbran Life for April Fools' Day.

From BBC

Mr Black decided to begin writing fake stories for April Fools' Day for "a bit of fun" and said his wife usually helped him come up with the ideas.

From BBC

Although Mr Black decided not to publish a fake story for April Fools' Day this year because he was "too busy", he said the experience had put him off and made him decide not to publish a fake story again.

From BBC

For example, early this year, an April Fools’ Day tweet from the Empire State Building’s official account teased an exciting dining opportunity: New York City’s most iconic building would now be home to the “world’s highest” Rainforest Cafe.

From Slate