qwertyuioasdfghjklzxcvbn
When you're so bored that you've been spending hours trying to find a variation of qwertyuiopasdfghjklzxcvbnm that doesn't exist, and fail miserably yet again. This combination is achieved by typing all but the last letter of line 1 on a keyboard, all of line 2, and all but the last letter of line 3
Person 1: qwertyuioasdfghjklzxcvbn
Person 2: Get some sleep for once, man.
Person 2: Get some sleep for once, man.