When you're on the verge of doing something awesome but back out at the last second or fail to accomplish your objectives due to cowardice.
Whether it's gaining a sizable lead during a Street Fighter match but ultimately losing or posting an inflamatory response on the forum then deleting it are two common examples of how to bottle it.
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.