Formerly, in the better old days, a business term of art used to describe the insignificant or immaterial numbers or aspects of the business that the PC Police have taken away with most of life's other small pleasures.
Older manager says - these 2 companies are the material ones. All the other ones are mice nuts.
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.