PajamaJam
A "PajamaJam" is a fun, chill session at night in your pajamas. It was started in the Big Brother house during the 13th season. It was made famous by Dominic "PT" Briones, Daniele "Dani" Donato, Kalia "Sleepy" Booker and Lawon "Superpower wanting" Exum. The fun now continues on Twitter by following PT (aka @dominicphillip)
A night without a PajamaJam is like a day without the sun.
Webcam Pajamajam
1. An event in which two or more individuals (often of the opposite sex, for socially acceptable purposes) participate in a webcam conversation outfitted in their bedtime attire.
John purchased a webcam this afternoon, so we are planning on having a Webcam Pajamajam tonight. If Megan's lucky, she might get an invite.