Lay down next to someone while they are passed out. Often associated when the people are almost strangers.
"Dude you can not lay next to her right now she is passed out, that would be creep sleep."
by BigMacBoss April 20, 2009
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The art of creeping up to someone while they are sleeping, getting as close to them as possible and then taking a photo of yourself next to them.
Creeping The Sleeping is a great way to ensure that your friends don't sleep in your presence.

Ridiculous or daring poses are preferred.

Is easily performed by insomniacs or those new to instagram.
"I will never sleep again in public, there are too many people Creeping The Sleeping"
by beatrixmooney August 21, 2012
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n. someone who engages in sexual activity while the "partner" is asleep (usually as a result of drug/alcohol use)

v. to perform the above action
Don't take any more shots....I heard that guy over there will sleep creep girls who pass out.
by 99overall January 26, 2009
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when someone takes naked pictures of the person they hooked up with that night while they are asleep and then shows all their friends the pictures and gives each other high fives
The Sleep Creep stealthily waits while his unsuspecting drunk partner falls asleep after orgasmic bliss only to be struck upon by the infamous Sleep Creep. The Sleep Creep takes photos of any exposed body part to keep as a trophy and memento to show all of his fellow Sleep Creepers. All the Sleep Creeps then have a round of laughs the next day over a round of drinks and plot for their next night of Sleep Creeping. The photos are not posted on the internet...that is just mean and could get you in trouble! ;-D
by The Original Sleep Creep August 4, 2009
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The old pervert you meet at the club who drugs you take you home and has sex with your unconcious body. Or could be your uncle who molested you as you slept but you were to afraid to wake up or tell anyone.
If you get drunk with a sleep creep make sure you stay awake or else you might wake up naked with a used condom in your asshole.
by p.daddy July 16, 2011
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when you lie next to someone when they are sleeping and whisper creepy sweet nothings into their ear. helps if you are of the opposite sex
i gave her the best sleep creep she has ever had. she woke up and hit me and then didnt remember it the next day.
by erikdean February 5, 2011
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