LORELAI: Hey, you know what? Let’s invite everyone …
RORY: And they could even stay in the inn. All those empty rooms, all those uneaten pillow mints.
LORELAI: An out of control, over the top slumber party!
A slumber party, pyjama , or sleepover, is a party where everyone sleeps in the same house. Typically people play pranks and games, watch movies, or stay up all night talking and laughing. Usually for children and teenagers, if organised by adults, expect a lot of drinking, just like the Bracebridge Dinner!
Lorelai avoids Sookie’s plan of her having a cosy dinner with Luke by impulsively inviting everyone they know to the cancelled Bracebridge Dinner. It may not be entirely a coincidence that she also avoids Rory and Jess having a cosy dinner together. The idea of spending some quality time with Jess probably doesn’t appeal much to Lorelai.
This episode (like many of the “towny” instalments) is justifiably a fan favourite, and much of the appeal comes from the wish fulfilment of staying in a hotel with all your friends for free, eating a massive fantasy banquet, doing snow-related activities, and drinking until dawn. Who wouldn’t enjoy that?