A hipster that uses twitter, a social networking site, extremely often. A twipster will most likely "tweet" about various aspects of the hipster movement especially indie bands concerts and events going on in Williamsburg, Brooklyn (the hipster capital). A twipster may tend to make many of their "tweets" ironic.
Kat is such a twipster, she's constantly tweetinglinks to concerts in Williamsburg and images of American Apparel models.
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?"