The term 'Truck Weight Unit' is a unit of measurement used to measure the weight of trucks. The acronym for this unit is TON, which stands for 'Tonne of Oil equivalent'. This unit is used to measure the weight of trucks in terms of their capacity to carry oil. It is also used to measure the weight of other heavy goods such as construction materials. The TON unit is widely used in the transportation industry and is an important part of the trucking industry.