I guess I can describe what I remember of it. DO NOT READ THIS IF YOU'RE EASILY OFFENDED (or capable of being offended at all).
He rescued some children from a goblin fortress, then went out with them as his army to slaughter the elves. Through elven attacks and wolf ambushes, their numbers dropped. One of them fell into a pool, and he stood there and watched until he drowned.
By the time he was done killing every elf in the world, he was down to two children. He only wanted one, so he beat one to death with a demon's skull. He then went into the raws and added...certain organs to his race and her race. The original poster didn't say which ones, but I think we can all guess. His was [LIMB] and [GRASP], hers was [JOINT] and [EMBEDDED].
He grabbed her left leg with his right leg (older wrestling mechanics), her right leg with his left leg, and her new organ with his new organ. Then he locked it. And broke it. Then, he gouged until she bled to death. He deleted the save file and emptied his recycle bin.
The next few pages of the thread were people talking about how horrible it was, until a few people talked about maybe adding a certain "secretion" to the man's body part. It kind of went downhill from there.