When one has larger gauge piercings in the ears; the white, smelly cheesy substance that can be found on the jewelry. It it made up of dead skin cells and shampoo/hair product residue.
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.