Bored to death in a cube a human decides to type qwertyuiopasdfghjklzxcvbnm (all the keyboard buttons in an orderly way) to a search engine to see what comes up. Then finds definitions for it and then adds a new one...
Person 1: What is the purpose of life?
Person 2: Good question.
Person 1: qwertyuiopasdfghjklxcvbnmpoiuytrewqlkjhgfdsamnbvcxzqpwoeirutyalskdjfhgzmxncbvqpalzmwoskxneidjcbrufhvtyg
Person 2: Uh, what?
Person 1: Don't you know what that means?
Person 2: What does it mean?
Person 1: I've lost my sanity.
Person 2 has left the chat
It is what you type when you are about to lose the last piece of sanity that you have. It is what you type when you are the essence of boredom. It is what you type when everything else has been typed. It is the thing that will end all things.