Like shitposting but instead, you post pictures of Craig in ridiculous situations that could possibly be from many years ago. The term has also expanded to include posting pictures of others as long as it is a ridiculous picture. Generally a much preferable way of shitposting.
Man, Andrew was Craigposting so much last night, I had never seen those pictures of him!
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.