the initial bulls balls that hang in back of a truck, usually a redneck's add-on to remind individuals who the truck is masculine. Seems like a bulls scrotum. Additionally as a gag. Driver frequently has actually a redneck horn on his dash also. The original vehicle balls or vehicle nuts tend to be scrotum look-alikes that rednecks wait the back of their trucks to let people know that they drive a masculine vehical.