Another one of those dumb insults that idiots on the internet use. It does not really have a recognized definition and is only used by idiots on the internet trying to make themselves sound cooler.
Person: Avatar The Last Airbender is my favorite anime!
Person 2: ur a dumb noobfag its not even anime.
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.
We have a Zoom meeting in a few minutes and I’ll probably go pajama casual.