The nickname for Park Ridge which is one of the roughest suburbs in illinois that surround Chicago. The Durty is "run" by Detroit Velvet Smooth and everybody knows it. Detroit Velvet Smooth is the leader of The Rock Pile, the most respected collection of people from The Durty. Also the home of infamous rapper Koof.
Detroit Velvet Smooth has The Durty on lock, i've never seen sombody run the streets so hard in any suburb.