Pejorative, can be used as a verb, noun or adjective for something or someone extremely annoying you wish would just go away, or if someone does something in that manner.
Go to schivenig.
He's such a schivenig.
That's so schivenig.
Could you stop shivenigging please?
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.