by firerabbit November 10, 2010
When you stick both feet into a vagina and pull up until the vagina fully surrounds you in the shape of a sleeping bag
Bro #1: “I got so cold last night I went to my girlfriends house and used her as a nichan sleeping bag”
Bro #2: “same bro but I used my dog instead”
Bro #2: “same bro but I used my dog instead”
by Nichan December 10, 2019
by kurt cosmic May 8, 2011
An extreme fetish or sick mental twist that affects certain people. When these people affected see an ugly person, someone so ugly that NO ONE would have sex with them even under extreme intoxication, they begin to fantasize what measures would need to be taken in order to lay the unfortunate looking person. The most extreme situation (where the syndrome got its name) is when the person would only be able to lay them by sticking the person into a sleeping bag entirely, zipping it up over thier body, and cutting a hole where thier crotch is, humping and having sex with the live person inside of the bag.
1) "There is no way in hell I would do old lady!", G-Man proclaimed."That is...unless...I apply my sleeping bag syndrome."
2) The man infected with sleeping bag syndrome jammed the ugly midget into the sleeping bag, zipped it up, and humped it while simotaneously throwing up in disgust.
2) The man infected with sleeping bag syndrome jammed the ugly midget into the sleeping bag, zipped it up, and humped it while simotaneously throwing up in disgust.
by Ashley the Amazing July 17, 2006
When a pussy has been fucked and stretched out so much that after she is done, and you happen to be the last guy of possibly hundreds getting some of that, you crawl up inside of it and then go to sleep. That way you sleep all night and stay warm wrapped up in her droopy ass beef curtains. In extreme cases, one will be able to pitch a 2-3 man tent inside the pussy.
Our county fair only has one ride, and her name is Sally. This year I was the last one in line, and when I was done she let me hang out and sleep in her sleeping bag pussy. I never slept better, and never got cold all night, even with all the puddles of spooge surrounding me.
by Mike -Hunt January 13, 2008
JD said: "I think I'm going to go for a sleep in my slippery sleeping bag."
He climbed up through the whales japseye and used its penis as a slippery sleeping bag.
He climbed up through the whales japseye and used its penis as a slippery sleeping bag.
by JFromH May 15, 2009
Everyone knows whales have huge penises, they even make the sea salty with all their semen. A slippery sleeping bag is the act of climbing into a whale's penis, cause you'd totally fit.
"So I saw that Bear Grylls where he slept in a dead camel, apparently the desert is cold at night. Weird I know. So anyway, I figured it might work the same with a whale's penis, but I was all wet so I was still cold.
Still though, I'm gonna copyright it, so Bear Grylls can't talk about the Slippery Sleeping Bag without paying out.
Still though, I'm gonna copyright it, so Bear Grylls can't talk about the Slippery Sleeping Bag without paying out.
by amnsiac May 15, 2009