noun. Someone who looks like they are wayyyyy too old for something. Derived from Boston College quarterback, David Shinskie, who is a 25 year old "freshman."
1) This kid on my little brother's middle school basketball team is such a Shinskie; he's 6'5" has facial hair, and says he's in seventh grade!
2) I went to a Magic the Gathering tournament last year. The average age of the people there was around 20, but there was this one Shinskie there who must have been 50 something!
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.