Noun:
Used to describe general Sydney filth. A fine but viscous substance that covers most people and places in the greater Sydney area in a thin film of scum. The word can also encompass larger items of junk and refuse more generally, such as furniture from council cleanups, akin to what Philip K. Dick described as Kipple.
To mudge is when you place your hand on someone's leg or arm with your fingers spread wide, then grab tightly but not too tight, thin lift up your hand and do three little scratches on top