It is a party in which a group of friends, esp. girls, sleep at one friend's home.
โAll the boys went, and weโre having a slumber party!โ Alice announced, driving Bella to the Cullen's house.
By Katerina
Slumber Party
Where several youngsters share a child's bedroom during his nap-time, to make said unwelcome sleep-period seem less boring and distressing. Similar to how a small group of neighborhood pre-teens will jog along wif a child who is having to do boring/arduous chores around da yard, so dat he feels less unhappy performing said drudgery.
Parents take note: if your child finds nap-time so torturously agonizing that he actually needs to hold an impromptu slumber party just to get through it, perhaps he doesn't even need the naps at his age, and so you should no longer insist on them.
When a group of lezbian girls get together and have a "sleepover". Usually, their parents can tell if there is a slumber party going on upstairs because the whole house is vibrating because of the 28 6.9 inch vibrators that were simultaneously turned on.
Yuri and Ligma had a lesbian slumber party last night because their parents were not home.
By Cory
Slumber Party
When getting a blowjob from your girl, right when your about to blast your load down her throat you jam her all the way down on your dick, and pinch her nose so she passes out from suffication.
My girl was giving me dome last night and I gave her a fuckin slumber party. When she was passed out i shit in her purse.
By Ali
Slumber Party Syndrome
Last one up, that can't fall asleep due to excitement from socializing. Being hushed only encourages uncontrollable laughter.
Can Also Be: Phenomenon when you are still awake and uncontrollably laughing in a social situation where you're supposed to be asleep.
When having a sleepover you stay up all night, and the next day you are extremely exhusted and lathergic.
Winston: You look like a zombie, what time did you fall asleep?
Oscar: James was over last night and we didnt get to bed to 5.
Winston: You might want to get some sleep.
Oscar: Yea I know, it's from the slumber party hangover.