To but it bluntly, a guy stands on the bed naked, and another lays on the floor and whacks off, if the guy standing on the bed catches the load in his mouth, they both shout "Sky Tram!"
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.