On top of the definition provided by the other commenter, it's vaguely analogous to shopping for something, and opening a new tab for everything that looks vaguely good. Then doing a pass to winnow down and close items.
There's also structure for organizing things that are related. So if you weren't sure if you wanted a toaster or a toaster oven, you could spatially have two separate groups.
It only clicked for me once I saw someone else use it. I'm used to it just being hostile to search traffic.
Vermont has (or had?) handwritten paper plates. Like if you imagine dealer plates, just messily written in sharpie and taped in the window.
As fake as they look to begin with, if you get close enough to read them, they're almost always expired.