It's a famousdinosaur that was bred with a Jan. The warcry of the Janosaurus is : "Rawr".
They are very shy, but when angered, they can transform into their ultimate form: Shrek.
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.