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A sleepover isn't just to "Sleep over" at your friends house it is purely to do things you wouldn't normally do at night like play and stay up all night.
If your parents tell you to go to sleep and give them your phones, make them read this, ( I hope it works, i'm gonna try this on my next sleepover)
I stayed up all night playing games at my birthday Sleepover
by Jrockover341 March 10, 2017
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2
Where you spend the night at a friends house, usually girls, aged 9-late teens. Though boys have sleepovers but they call it "spending the night" at someones house. Has absolutely nothing to do with any sexual activities.
I'm going to a sleepover at Ashley's house

For my birthday I am having a sleepover party
by ---anonymous July 23, 2006
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3
This doesn't have to entail just girls.
This is the act of two or more friends spending the night at one of the persons house. Usually involves the visitors bringing sleeping bags and sleeping on the floor. Common activites tend to revolve around a sleep over: Pillow fights, Board Games, Dungeons & Dragons, Makeovers, and talking about the opposite sex.
Most Pajama Parties involve a sleep over
Hey, let's call up everybody and have a sleep over this weekend.
by AdamBoBadam September 08, 2005
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4
A legal definition of 'sleepover' is as follows:
-One or more people stay over your house
-With the intention of staying there for the entire night because it would be IMPRACTICAL for them to go home
-Activities are undertaken at the house that you are staying at
-Being at the persons house is the main focus point of your night
-It is NOT a sleep over if you live out of home
-A girl/guy staying over for the purpose of a relationship of some kind is NOT a sleepover, it is sex/a relationship.

Impractical in the situation is defined as: There is going to be stuff done until the evening hours in which it would be stupid for someone to come and get you or to leave yourself, especially on your own.

Sleepovers were so much fun as a kid.
by NRLeels August 27, 2008
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5
The name is irrelevant. No sleep is allowed.
I'm going to sleepover at a friend house so I don't have to sleep
by XxFawnxX April 17, 2018
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6
The hangover like symptoms that are induced by copious amounts of sleep.

Symptoms include extreme grogginess, aches, and general crankiness after sleeping an extreme amount that you aren't used to. No illegal substances involved. Usually after 12+ hours of sleep.
Friend 1: "Jesus, we just slept 14 hours after that forensics trip."
Friend 2: "I know. I feel like I have been hit by a train."
Friend 1: "Damn sleepovers."
by alwayssixthirty April 11, 2010
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7
A particularly terrible film centered around an unnattractive bunch of D-list prepubescent female celebrities. Lured people such as myself by offering "FREE I-ZONE CAMERAS FOR THOSE WHO SHOW UP IN THEIR PJS!" Cocksuckers.
"I wasted 8 dollars on that piece of shit AND I wore my fucking pajamas in public. I didn't even get a camera."
"Surprise... you're an idiot."
by ilikefood May 30, 2005
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