A "panda fail" occurs when someone is so unsuccessful at a particular task (ie. the apparent lack of sex drive among pandas) that the person's existance is no longer necessary.
Bob's decline of his wife's offer to have sex with her while concurrently eating a sandwich was a total panda fail.
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.