The yet-to-be-copyrighted brand name of a utensil that includes a spoon, a fork and a knife. It's basically a longer version of a spork with knife teeth on one side.
Derek: I have something to eat that requires three different utensils. What am I to do?
Otto: Here, use my Sporkenife!
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?"