The clean and jerk is a type of weightlifting. It is a highly technical lift, one of the two used in Olympic weightlifting.
The clean portion of the lift refers to the lifter explosively rowing the weight to chest level, and flipping the arms quickly beneath it to catch the bar. It should end with the elbows extended and the bar pressed to the chest in preparation for the jerk. The jerk portion of the lift is bending the knees slightly, and pushing the bar explosively above the head, locking the elbows and holding the weight at arm's length. After one or two seconds the lifter then lowers the bar to their chest and back to the floor to repeat the lift if desired. Variants of the jerk include the lunge or split jerk, where the lifter steps forward with one foot and bends the same knee to parallel while the rear leg stays behind the lifter with the leg also bent, and the more modern squat jerk, in which the lifter squats down under the bar and then stands upright again. The main advantage of the split jerk is that it is easier to balance the bar forwards and backwards and the main advantage of the squat jerk is a greater ease of recovery.