based off of the popular saying "the cat's pajamas" or "the cat's Meow" this is an adjective that means good, great or spectacular. It was determined in Madison WI that tits were better then pajamas.
Holy shit that guy just beer bonged a 40, he is the cat's tits.
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.