a scribit is someone who sits at home in front of the pc & atempts to think of cool sounding words, with definations. However the result (urbandictionary.com) usually results in failure & just end up sounding craf.
son: look mom! i made a new word!
mom: shut it ginger freak...
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.