Shido: To encircle the end of the belt or jacket around any part of the opponent’s body.

IJF SOR 18.1.2.21.  To encircle the end of the belt or jacket around any part of the opponent’s body. The act of “encircling” means that the belt or jacket must completely encircle. Using the belt or jacket as an anchor for a grip (without encircling), e.g., to trap the opponent’s arm, should not be penalized.