trailer trash/trailer park trash
the garbage and the people who drop the garbage from the roof of their cars, coming out of the trailer park.
Trailer Trash/Trailer Park Trash; people from trailer parks, who put their garbage on the roof of their cars, to take to the trash bin...then forget it,.. drive down the road and it falls off...THOSE people are "trailer trash"-"trailer park trash," and the garbage all over the road is "trailer trash"-"trailer park trash."