What gesture? This is a rock gesture, right? The "rock" gesture we see now looks like a goat. In western culture, goat usually represents the incarnation of the devil, so this gesture was originally a dirty gesture used by residents of Mediterranean countries, which can be traced back to ancient Greece. It is called "devil's corner", "goat's corner", "rock corner", "evil finger" or simply "mano cornuta or horned hand" and so on. With the development of the times, the "goat horn" was introduced into metal rock during the Black Sabbath, and gradually developed into the same gesture of rock fans all over the world. In some American rock subcultures, it is also called "rock" gesture. The cheerleaders of the University of Texas sports team use this gesture to cheer for their players. Nature has nothing to do with Satan and the devil. Simply put, it is "excellent, excellent". When you praise someone for being great, you can also use this gesture to say "You are great!"