A fart that creeps upward and becomes trapped in your shirt, warming you at the same time. Later, when you take the shirt off, you get a whiff of the remnants of the fart, like you farted again.
On a chilly winter day, a fartigan sweater is kinda nice, until you take off your shirt later on.
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.