Originated from the word WebCam.
This is the act of smoking weed with your friends over WebCam. Optimal for the use when they are not in your presence, or you are away from them and you need to smoke weed with them.
Jack: Hey man we gotta smoke weed with Jim!
Ryan: Well we can't, he is in another country, he only has his freaking webcam to chat.
Jack: We can WeedCam with him, it will feel like he is there.
Ryan: Awesome, getting high over the interwebz.
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?"