from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An overnight party in which guests, usually girls, wear nightclothes, socialize, and spend the night at a friend's home.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a party where everyone is dressed in pyjamas, or otherwise dressed for bed
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an overnight party of girls who dress in nightclothes and pass the night talking
Sorry, no etymologies found.