The process of working on yourself physically and mentally. When someone is chulking, they are attempting to gain huge muscles and a better personality in order to become a Giga Chad.
Guy 1: I think I'm gonna start chulking.
Guy 2: You say that every time you get dumped.
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.