When you are in the 69 position and milly pins you down with her knees on your shoulders and shits in your mouth then uses your eyelashes and eyebrows as toilet paper.
Dirty Miley means means musty ass bitch that gets bullied by her brother it also means she is the greatest person ever eventho she do be musty sometimes
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?"