qwertytrewq is a certain word used- well I wouldn't exactly call it a word, but it's the kind of thing that you would type to a friend or google search when it's 3: am and you're bored out of your mind and you don't know what else to do.
you got to the final level of boredom you have done "qwertyuiopasdfghjklzxcvbnm" & "mnbvcxzlkjhgfdsapoiuytrewq" & "1234567890qwertyuiopasdfghjklzxcvbnm,./;'\-=/.,;'\=-0plmko9ugaws23qwaxtcvuvbb" now you are ready for this THE FINAL LEVEL "qwertyytrewq wertyytrew ertyytre rtyytr tyyt yy"
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"