What do you mean by matching keys?

The matching key literally translates into the matching key of the door. But what we are talking about now is not literally matching keys, but a popular stalk on the Internet. Asking whether a person is worthy of a key will mainly lead to a sentence, "Are you worthy?" . This is an ironic stalk, just like Longming Stalk. In fact, it is about farmers, mainly to express irony that a person is backward, conservative and uneducated. Matching keys is mainly to ask if you deserve it. If you answer no, you will actually be satirized or insulted by others. So there are a lot of stalks on the Internet now, which are often not literal, so we still need to know more.