Anarcho-capitalistteenagers who defend billionaires online. The joke stems from the word "wumao", and "lingmao" ("0 cents" in Mandarin) emphasizes the fact that they are not paid by the people they defend.
Elon Musk has an army of lingmao fanboys who defend him on Reddit.
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.