Oejo is a person who doesn't date their friends. It's not that they don't date period, but they don't date their BFF's because they don't want to cause drama. Usually an Oejo does this because they've dated someone in their friend group and it ended badly.
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.