The term 'Gaucho Weapon' refers to the traditional weapons used by gauchos, a type of South American cowboy. These weapons include the bola (4 letters), bolas (5 letters), BOLO (4 letters), and the RIATA (5 letters). The bola is a throwing weapon consisting of two or more weights connected by a cord. Bolas are similar to the bola, but with three weights connected by two cords. The BOLO is a single-edged knife with a handle. Finally, the RIATA is a long rope with a loop at one end, used for lassoing animals.