A term originating from the grayeyes you see in some of the songs from the Mogeko Castle OST on YouTube. The term refers to music that is dull and not enjoyable to listen to.
Person: You added all of the songs to your playlist?
Person 2: Yeah, even the gray eyes because I like the game.
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.