Based on the Kate Hudson movie Skeleton Key, in which an old lady steals her youth, skeleton keying is when you and your friend are both deservedly hungover, and suddenly one friend begins to feel much better, and the other friend much worse. The friend that is feeling better is 'skeleton keying' the other, or stealing their essence.
Alex, a minute ago I was fine, now I can't get off of the floor, and you're suggesting we walk to McDonalds? How are you feeling better, are you skeleton keying me?
Sans the Skeleton is a well-known character in the indie game UNDERTALE, Named after the well-known font 'Comic Sans' and also based of the word 'sans' which means humorous and funny. He loves jokes and ketchup and has a brother named Papyrus which is also named after the font 'papyrus' and the word papyrus it self. Sans is a kind hearted guy at first looks, but he gets real tough when you do a genocide run. These two skeletons are based of a comic skit called, 'Helvetica' which has a skeleton protagonist and is also named after the font. This Helvetica was created by JN Wiedle which it appears in the Pasifist credits of the game.
Papyrus: SANS! WHY ISN'T THE BIKE WORKING?
Sans: I dunno, maybe it's...
Papyrus: DON'T YOU DARE-
Sans the Skeleton: TWO-TIRED?
Papyrus: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGGGGGHHHHHH!!!!!!!!
A war that has been waging for centuries. If you don't get "rest in pieces" written on your grave you will join the skeleton army. It is a warrior against the fuckboys, and more recently (2016 & 2017) against porn stars on Instagram as well)