An awkwardly lanky and flat-chested young woman who dresses like a hooch and tends to be easy as pie (although she never eats any). Generally, the Lankskank will hunch over to appear thinner, and wear cheap, low-cut tops that only show off her clavicles.
"That girl and I hooked up, but I must've been too drunk to realize what a Lankskank she is. I'm surprised her boney ass didn't injure me."
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?"