Blistering Bull
When a man's sexual reproductive tool is bruised and battered after some rough loving, he now has the dreaded "Blistering Bull". Most often caused by extended dry humping. Very painful, limits your sexual use for a few days, but usually comes with a good story.
"Man so I hooked up with that one chick, and let me tell you: crazy night! I mean it was wild and rough. But I woke up sore this morning, and looked down, and to my horror, sure enough, I had a big red Blistering Bull!