Tight, or Cupped fitted crotch region of pants, shorts or undergarments. Derivative of the phrase "Nut Snug". The origin is Norwegian, and thus the "K" is silent.
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.