a social gathering typically of teenagers held at the home of one of them for the purpose of sleeping there overnight.
Origin of slumber party
First recorded in 1920–25
Also called pajama party.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for slumber partysleepover
US and Canadian a party attended by girls who dress in night clothes and pass the night eating and talking
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012