It can mean various things. It dependens on how you use it in a sentence. You can use it in negative term or positive term. Negative term- awful, terrible, not a good situation to be in. Positive term- awesome, happy at what just happened, someone achiving something that you like.
Negative term- The weather today is so patrocious, i am going to need three goddamn jackets.
Positive term- Damn, that blunt is so patrocious.
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?"