In weightlifting, the "clean and jerk" is a two-part lifting movement that tests both strength and technique. The first part, the "clean," involves lifting the barbell from the ground to the shoulders in one movement. The second part, the "jerk," entails pushing the barbell overhead, either in one explosive movement or with a quick dip and drive. This event is performed in competitions, including the Olympics, and is part of the overall weightlifting category, emphasizing both explosive power and coordination.