Well, my custom user title is actually a reference to something that happened on another site.
You see, I was playing a game of Mafia, and the Cop had claimed and nailed us two Mafia. I wanted people to stop relying on him so heavily, because I thought it might've been a plot of some kind and also because it was a matter of time until he was killed if he was telling the truth after all.
In one of his posts, he was asking questions, and addressed me as "Guy who hates cop nailin' scum". I felt I had to make a reference to that due to the sheer awesomeness of it, thus the user title you see now.