So a dumbass walks into a gun shop and asks the shop owner if his illegal gun is illegal. Shop owner says yes, and calls the ATF. And that's how the ATF ended up trolling Urbandictionary.
According to the most popular definition on Urban Dictionary, it's "what just about every scene kid and hipster under the age of 25 calls themselves these days. Many own Canon Rebel xtis and rely heavily on cropping and Photoshop filters to give their otherwise mundane photos an "artsy" feel."