Irrelevant relatives. People in your family who you don't know and hardly ever see, who annoy you at family reunions. They never attend any other gathering that you are aware of. Their sole purpose of turning up to the reunion is to tell you that (unfortunately), you are related to them.
I was at a family reunion last week and one of my irrelatives there just wouldn't shut up about how much weight she'd lost.
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.