Actually, it's Ebony Dark'ness Dementia Raven Way. I know this because @Herzinth set that as his Skype display name, so I've gotten used to seeing it around.
It originally started as an identifying term for someone who goes to a preparatory school (which in North America means a high school that is meant to prepare kids for higher education). Due to stereotypes of those students almost religiously sticking to 'normal' types of teenage dress, behavior, and preferences, it became a slang term that basically means 'conformist.'