When one attempts to draw the attention or initiate conversation with someone they know, only to be completely ignored, leaving the instigator looking like a total twat.
Today it usually means something like being ignored. During the Great Depression, the phrase was "eating air custard and wind pie"; that is, nothing to eat; going hungry.
When you are either a total noob at smoking weed or have such a chemical dependence and you dont have any glass so you just light it in your hand and breathe in the fumes.
Dude where is my piece, I need to smoke this weed.
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?"