A fancier way of expressing the childhood game "Follow the Leader". Comes from the Latin root Sequ, meaning follow, and the root Ex, meaning out. Although obvious, the root Duct, meaning lead, is not used.
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.