a holiday that is well, literally, a joke
April Fool's day is a really stupid holiday.
by gcast1026 April 01, 2009

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Top Definition
When editors of Urban Dictionary decide to approve your rejected entries if you dare to submit them again—however, they might keep them out the next day, though!
On April Fools' Day, Urban Dictionary editors are allowed to submit their own definitions and approve them—even President Trump's executive orders can't change that.
via giphy
by MathPlus April 01, 2017

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The one day of the year where nobody, no matter how hard they try, can possibly be funny.
Hey man, you want some peanuts? (Snake flies out of can) April fools!
by Basil March 31, 2005

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The one day when it's okay to be a complete and total asshole.
"Mom, I'm pregnant!"

"You're only fifteen." **has a heart attack**

"...Happy April Fool's Day..."
by jaycubed31 April 01, 2009

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day when people get to use the most unoriginal jokes till 12:00
putting clingfilm on the toilet seat
swapping around the draws
turning back alarm clocks
by neen April 02, 2004

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April 1rst. A day in which practical jokes are played. The second worst birthday surpassed only by febuary 29th
Gullible is written on the ceiling.
by Pepsi X-treme June 24, 2005

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The best day of the year to wear sandals.
Vince: Hey, man, your shoelace is untied!

Diggity Monkeez: Nice try, citizen.
by Diggity Monkeez April 01, 2005

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Trust no one... you are not safe. Run And hide. Don't try to defend your self you WILL FAIL.
Jim didn't run or hide so he was pranked on April Fools Day
by Urban_Dictionary_Daily247 April 01, 2015

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