http://en.wikipedia.org/wiki/Penile_fracture
Grey's already gotten a Wiki shout out.
I'm surprised at how many people said, "Why don't they just tell us what's wrong with Izzie already!!!" I thought it'd be obvious that she was sick, but in the last few weeks people kept acting like it was all a big mystery...anyway, I do like Izzie (not seeing dead people) so I'm excited to see what happens to her. And I think I would've done the same thing Mer did. I had a dream once that one of my old patients from the hospital was dying and I was asked to sit with him while he passed because he had no one else. I did it in the dream and it surprised me, but deep down I think I'd do it IRL, too.