A person who isn't quite hipster, isn't quite mainstream. While they don't approve of the whole asshole "vegan, downtown LA" persona, they do enjoy certain participating in certain "hipster" activities such as owning vintage items and playing ukulele.
1) A collection of nerds gathering together to sexually arouse themselves by playing board games, video games, anime games, homosexually stupid card games.
A combination of the words "nerd" and "orgy" to describe a gathering of overly excited nerds sharing a collective nerdgasm over their mutual obsession (this includes Trekkies, LARPers, and other superfans in one place, such as a Con).