When you're the most bored
person in the world, you decide to type qwertyuiopasdfghjklzxcvbnm, then mnbvcxzlkjhgfdsapoiuytrewq, then qazwsxedcrfvtgbyhnujmik,ol.p, etcetera. You go through hundreds of combinations and try to find one that isn't already on Urban
Dictionary. After around 69 years, you decide to start with the
bottom row, going up once finished each row in an alternating fashion of farthest-left key to farthest-right key in the row.