Hartily is a name given to a kid with a great future. His/her life will be great and they will be bitchin' everyone that comes in their way. Hartily is a great person, but when provoked, your life will be a nightmare, you better hide when you see him/her coming to you after you provoke them. Hartily is great with retribution.
De hartily is a bitch and yes they're a bitch because they don't owe you anything
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?"