The practice of wearing one's pajamas inside out in the hopes of increasing overnight precipitation resulting in a snow-day.
I'm getting hammered tonight, you think we're gonna get a snow-day tomorrow?
No doubt, I'm already wearing my pajamas inside out.
No doubt, I'm already wearing my pajamas inside out.
by Cali Shorty March 1, 2009

A more sexual version of a sleepover. Basically people show up in their PJ's, get stoned, and then procede to have all kinds of sexual experiences with the other guests, leading to a large orgy involving the host, all of the guests.
Guy1: Dude, Stacy's having a pajama jama jam, you going? Guy 2: Hell yeah!!!! No way I'm missing that!!!
by Xero _ Manifest November 9, 2010

At the Front St. Halloween party Butchy Tiger invited Dorkis Crapsaddle to a Phillipsburg pajama party.
by Butchy Tiger November 1, 2010

Not the same as wolf in sheep's clothing, as you can still see the shark in his silk pajamas, but because he is in pajamas, you think you can trust him. Fool on you, he is still a motherfucking shark.
You can't trust that Matt guy, he's a shark in silk pajamas. In the end he'll come back to bite you because he is obviously still a dangerous shark.
by IamMattyyyyyyyyyyyyyyyy October 6, 2010

When you go to the methadone clinics in Albuquerque and all the degenerate scumbag junkies are there in their bathrobes because they're too fucked up to get dressed.
I drove some clients to the methadone clinic on Central to get dosed this morning, and all the addicts were wearing robes and jammies, it was a total Albuquerque Pajama Party.
by big daddy flim October 14, 2017

When one wears the clothes they wore to bed to school or work the next day without changing. In some cases, the individual puts on the clothes they'd like to wear the next day on at night and sleeps in them.
by loucaster November 16, 2014

by Graissant November 23, 2014
