the third link is the most informative,
The sparks notes of this whole ordeal is this dumb freshman at my school tried to fit in and some upperclassmen told him it would be cool to get a tattoo on his ass that said poop dick. so he did. ive seen the picture of it, it is hilarious. possibly the worse done tattoo that i have ever seen. and dont believe the media when they say he had severe mental illness and what not. he had trouble reading that is it.