The possible consequence in video games given to someone for "pwning" them during gameplay. (for payback)
You headshot your friend in Call of Duty and your friend respawns and does something awesome to kill you back. "Dude that was so possiquential, you had it coming."
Y'know when you get that random shiver in a perfectly warm environment for no apparent reason. That's possling.
-two friends are sitting in their living room-
Friend 1: *shivers for no reason*
Friend 2: You just possled.
Friend 1: It feelsweird to Possle.
Friend 2: Oh, i quite enjoy Possling
Friend 1: ...
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?"