A day, usually on a weekend or during a day off, when you have nothing to do and sit around lazily in your pajamas, not leaving the house. Often involves eating cereal for every meal and excessive television/video games.
Speaker 1: "Hey, want to go see a movie?"
Speaker 2: "No way man, I'm having a pajama day. Let's just sit around and watch Seinfeld reruns."
by the Master Crayon February 19, 2010
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August 24, today

A day when you don’t have any other clothes to wear, so you wear pajama clothes to band camp
Person 1 : “why r u wearing pajamas?”

Person 2 : “it’s pajama day!”
by bluechipss August 24, 2023
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When one wears the clothes they wore to bed to school or work the next day without changing. In some cases, the individual puts on the clothes they'd like to wear the next day on at night and sleeps in them.
I had zero stress this morning about what to wear because of my spontaneous pajama day.
by loucaster November 17, 2014
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Spiderman: its pajama day?
Deadpool: yea it is
Spiderman: h-ll yea!
Deadpool: lets get out pajamas on
Pajama day is a day just about spideypool!
by Mae likes ice cream April 21, 2021
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