It is when you and one of your friends goes up to each side of an old person and hits hips and shoulders at the same time. If it was a successful Kaboshki the old person will be lying there with broken hips and shoulders without the ability to move. You can optionally do it with three persons, where the last person hits the tailbone and spine.
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.