👉 The term "all-knowing" is a bit of a buzzword that got coined by a certain internet meme sensation to describe someone who knows everything about something or anyone. It's used as a euphemism for being utterly perfect and unchanging, like an infinite universe or a never-ending algorithm.
An example sentence using it: "Trust all my knowledge and I won't ever be able to go back on it." This line is meant as a playful jab at someone who believes they understand everything about everyone else. They're basically saying "I'm just a little smarter than everyone else, so don't bother asking me anything." The joke's intended to make the person feel like an idiot and not know any better.