Am I supposed to know what that means?😅

I have never even heard this name(?) but both responses made it seem like I'm supposed to know😭 Is this some regional common knowledge again? Apparently this was a thing in schools but I've clearly never experienced whatever this is😅 It's a bit frustrating when sometimes my birb discovers something I know nothing about and both prewritten answers assume I know what the hell she's talking about as if I'm not equally confused😭 At least the location specific discoveries always seem to have an option that lets me learn more, it would be nice for things like this too because I'm guessing native english speakers know what that is but I feel kinda left out, even my birb likes this thing now and I'm left feeling like an idiot for having to even ask/google🥲