The act of going into cold weather wearing only jeans after sweating. The cold then freezes the sweat on your balls and ass, causing a mild flux in thermal temperature around your taint, instantly freezing your balls to your taint.
"Man Mike, we shouldn't have ran up those stairs! My balls are sweaty, and fuck dude, its coldoutside, i might get a taintsicle if im not careful"
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.