A scumwally is somebody who relishes being white trash. Cars on blocks in the front yard, indoor furniture used outdoors. Lots of dirty, barefooted children, usually playing on/in the broke down cars.
A person of poor hygiene and typically have a low class attitude. Often found in the slums of a town. They have little self-respect nor respect for others and are usually very rude. The new way to call somebody a Scumbag. This term originated in Winchendon, Massachusetts.
Ben: That kidkind of smells and is always so rude to me.
Holly: That's because he is a scumpa.