The "Skeleton Shield Banging" meme features a stop-motion animated skeleton warrior from the iconic 1963 film "Jason and the Argonauts," brought to life by legendary animator Ray Harryhausen. In the film, these skeletons are resurrected by the villain Talos to fight Jason and his Argonauts. The image, specifically showing a skeleton striking its shield, has become a popular reaction image. It's often used to comically express readiness for a challenge, a defiant or intimidating stance, or to signal anticipation for an upcoming event or confrontation. Its vintage animation style adds to its charm and versatility as a classic internet meme, often evoking a sense of humorous aggression or a call to action.