Most bloggers rely on nicknames or online handles to keep their ramblings at least somewhat anonymous — and that’s not terribly different than some of the District’s notorious criminals.

In this morning’s Post, we learn that District police have started keeping tabs on the street names criminals use, entering them into a database and linking them to names, addresses and other identifying characteristics. So far, police have thousands of street names on file, everything from the more serious Gotti and Mean Dog to the slightly less scary sounding Island Hippie and Orange Crush. A Post review of 4,000 of the street names found 25 Fats, two Fattys, one Fat Fat and two Fat Daddys. There was even a Black Elvis, though we doubt he’s the same guy as the beloved Blelvis.

So if you’re ever confronted by a guy wearing acid-washed jeans and listening to “Run for the Hills,” fear not — that’s just Iron Maiden, and the police have got his street name on file.