It's a blend of "law" and "lashing" to describe the act of using legal measures aggressively or excessively, especially with a hint of malice or for the purpose of intimidation or suppression, like going after smaller entities or individuals even when the action isn't necessarily beneficial to the aggressor, other than to serve as a warning or show of power.
Example: Nintendo Sued the developers of Yuzu emulator. They tried to use every legal trick in the book and won the lawsuit. The devs had to pay millions to Nintendo.
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.