Gnashnab is an 18th-century northern English word, meaning someone who just complains all the time. Contemporary synonyms include nitpicker, moaner, and grumbler. It's just as true now as it was back then—no one likes a gnashnab.
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.