full nelson n 1: a wrestling hold in which the holder puts both arms under the opponent's arms and exerts pressure on the back of the neck (illegal in amateur wrestling)
Half nelson \Half nelson\ (Wrestling) A hold in which one arm is thrust under the corresponding arm of the opponent, generally behind, and the hand placed upon the back of his neck. In the {full nelson} both hands are so placed. [Webster 1913 Suppl.]