A image board, similar to 4chan, in which all posts consist of gore. Mainly gore hentai, rape fantasy, and gore rape fantasy. If half of the people on that site AREN'T rapists, I'd be surprised.
Gurochan user: Dude Check out my hentai folder
Normal guy: Disgusting! She's missing an eye and there's a machete in her back!
Gurochan user: Hawt right?