Military hand and arm signal given to a helicopter pilot when their rope-suspended cargo is liable to cause the aircraft to go out of control. It is issued by holding the left arm out horizontally hand in a fist, knuckles up and then waving the right arm at the elbow so that the knuckles pass under the left elbow in a cutting motion. It is a term that signifies dropping a topic, problem or person in a hasty and irrevocably conclusive manner.