A person (gender doesn't matter) who constantly acts like they own the entire country and that they're famous/beloved by all, when in truth they're morons/assholes that nobody likes.
I hear you're new to the neighborhood. First of all, please ignore Joe. He's one of those "small man, big ego" types who thinks he owns the street. I should know, I'm his landlord.
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.