Skuntch is a hybrid word which combines three words into one. It is the great-grandmother of all female disses, and though there can be male skuntches (pl); a vast majority of skuntches (pl) are female. The three words the word skuntch is derived from, skanky cunt bitch, combines the three adjectives into a singular noun; henceforth the word skuntch.
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?"