A condition whereby cold weather, moisture and/or lack of a brassiere forge the perfect storm of mammary offensiveness: rock-hard, lumpy, chilled little mounds of flesh protruding through one's shirt like tiny gherkins.
Oh my gosh! Lindsay came to the party without a bra and she had pickled nipple all night long!
One who likes to tickle nipples. This can also be used to call someone a clown, jokster, goof, crazy, etc.. Some people you can just tell by their appearance that they are nippleticklers. Others it takes a little more research to discover this.
"Dude did you just see that chick? she was freakin hott."
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?"