a pie that is filled with chunky piss that usally have kidney stones mixed in with it... also in the mixture is some differant colored pee such as red (which is blood) the top of the pie is made with flattened poopoo which makes a good crust after put in the oven.
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?"