Definition of April fool
: the butt of a joke or trick played on April Fools' Day
also
: such a joke or trick
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“April fool.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/April%20fool. Accessed 29 Jun. 2022.
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Time Traveler for April fool
The first known use of April fool was in 1629
See more words from the same year