When a man pins down a woman with his knees on her arms and ejaculates on her face. This in turn only allows the woman to wiggle around to avoid said facial.
Individual #1: Oh man I brought Sarah to the wiggle room last night.
Individual #2: Duuuude... you snag any pictures of that?
Individual #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?"