A pair of particularly scandalous or slutty panties; like the tiny, black lace, completely see-through ones that you feel awkward washing with the rest of your clothes because they are just that sexual, or Heaven forbid you use a public laundry room and they should fall out of the pile onto the floor before a crowd of judgmental eyes...or your mom.
Kathy made the unfortunate mistake of wearing slunderwear under her dress on a breezy day.
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.