"Gomu Gomu no Pistol" is a signature move used by Monkey D. Luffy, the main character of the anime and manga series One Piece. This technique allows Luffy to stretch his rubbery arm back and then launch a powerful punch at his opponent. The elasticity of his body, due to the Gomu Gomu no Mi (Gum-Gum Fruit), gives him an advantage in combat, enabling him to strike from a distance. The move is not only effective in delivering strong blows but also showcases Luffy's unique abilities as a Devil Fruit user. As he continues to grow stronger, Luffy develops variations of this technique, enhancing its power and versatility in battles.