Usually described by others as a Gaming God (MLG god). Jonski's are usually very rare in a community and commonly respected because of their god-like features in video games. Someone described as a Jonski is very talented at video games (especially first person shooters).
Boy: "I just versed a Jonski and I loss".
Girl: "Don't mess with a Jonski"
When the one we refer to affectionately as "Jonk" is circulating around the room talking to everyone like they are his best friend. Discharging his warm cunning words of kindness all over their innocent faces.
"Look at him Jonkulating with those people by the bar." "Ugh, we're trying to play a game here."
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?"