When one finds extensive amounts of data that exactly match a research assignment and gets erect in the library because of said data.
Jonny: Dude look at all this data on dolphin speech I just found!!!
Rodger: Whoa man your libroner is showing.
Jonny: I don't even care man this paper is MADE!
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?"