Since they could only be seen from the waist up, they did not bother to put on pants for a Zoom call.
In the middle of the Zoom call, and they make the mistake of standing up, letting everyone see their underwear. How embarrassing. Even worse if one of their co-workers decides to put it on the web for the world to watch, over and over again.
This one mistake could make you famous in a way you do not want and even negatively affect your career.
The Fix: Before doing a virtual call, it is always best to look down before getting up, even for a "brief" second.
The term bottoms-up is ok when you are having a drink but not for webcams. Or even better, make a point of always being dressed for success.