Non-gender specific form of neice or nephew. As 'sibling' is to brother and sister. And 'spouse' is to husband and wife - 'Neibling' is to neice or nephew.
"My latest neibling was born today. Welcome to the worldDarcy."
" How many neiblings have you got?"
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.