I've been on a horror manga kick recently, and just started reading "Franken Fran." Pretty much one of the most disturbing and graphic series I've ever read - it's like a train wreck that appalls me, but I just can't stop looking at it. I think the genre is actually "Guro," which is basically "F*cked up sh*t." But the series has a pretty good dark comedy vibe going that has me laughing as often as I'm grossed out. My favorite chapter so far is 26, because it has the Flying Spaghetti Monster as the punchline.
Anyway, wondering if anyone else has read this series? It's on mangafox but I'm not going to link it because it really isn't appropriate. Search for it if you're interested