When you are sitting in school trying to be a good student but maths is just so boring so you just type in all the first three rows on your keyboard holding the shift key. Then you get surprised that there is an actual definition for it and you spend the rest of the class making new definitions.
...I is bored I feel, !"£$%^&*()_+QWERTYUIOP{}ASDFGHJKL:@~|ZXCVBNM<>?
when on a school issued piece of shitmac, you have already typed qwertyuiopasdfghjklzxcvbnm mnbvcxzlkjhgfdsapoiuytrewq zxcvbnmqwertyuiopasdfghjkl `1234567890-=qwertyuiop\asdfghjkl;'zxcvbnm,./`1234567890-=qwertyuiop\asdfghjkl;'zxcvbnm,./~!@#$%^&*()_+QWERTYUIOP{}|ASDFGHJKL:"ZXCVBNM<>? qazwsxedcrfvtgbyhnujmikolp plokmijnuhbygvtfcrdxeszwaq /.,mnbvcxz';lkjhgfdsa\poiuytrewq=-0987654321` then you type every key on your keyboard once, type them again holding Shift, again holding Shift+Alt, and again holding Alt. expecting not to find any results, then you find this. doing this is a sign that you should really consider doing your homework, or seriously consider mental help.
You are extremly bored and have LITTERALY nothing else to do so you search this.
Person 1: How bored are you?
You: *typing*
Person 1: Well??
You: `1234567890-=~!@#$%^&*()_+qwertyuiop\QWERTYUIOP{}|asdfghjkl;'ASDFGHJKL:"zxcvbnm,./ZXCVBNM<>?
Person: wut?!?!?!?!
Only true masters of boredom will type this. This series of characters appear when you press every key on the keyboard and then do it again, but while holding shift.