A fictitious device used to gauge the drama and/or stress associated with a particular person or situation.
"Wow, did you see the look of disgust on Walter's face after that staff meeting? Not only is the shit going to hit the fan, but the dramometer in this office is about to set an all-time record high!"
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.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"