A shmunch is a brunch between 2 people after having a one-night stand, often preceding the walk of shame going home. Shame + Brunch = Shmunch. A shmunch is typically recognizable at a cafe or restaurant because the shmunchers are dressed in clothes from the previous night's affair (i.e. sequin mini-skirt and high heels with bedhead and messy makeup on a woman, and overly dressy and wrinkled clothes on a guy, mixed in with bedhead and morning breath)
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.