A type of person/student. Derived from the word nerd, meaning teachers pet or smart person, but also thought of as being generally stupid and bad at school. Hated by most people in the school due to pretentious personality and thinking that they're really awesome.
"The opposite of being drunk, its as sober as you can ever be. It strips away all the illusion, all the comforting pink fog in which people normally spend their lives, and lets them see and think clearly for the first time ever. Then, after they've screamed a bit, they make sure they neverget knurd again" - Terry Pratchett
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.