Jukiyo culture is a broad range of fandoms including: Anime, K-pop, J-pop, Vocaloid, Gaming, cosplay etc.
If your a nerd for more than one of these you are a "Jutaku".
This word is derived from the 'soon-to-be' social network website for fans of these categories.

The website is Ukiyo Online (The floating world Online), founder : Jenny Caplan

A cultural and aesthetic mind-state that prioritizes making money, even as an “underground” or “radical” creator. The work isn’t made for money, but it’s the money that matters the most.