A magic potion or substance. (This is made from repulsive filthy things that s.o. adds to s.o.'s drink or food so that the person eating or drinking will become fully submitted and never go against anything the other person wants to do. An incantation is said over the potion or substance so it will be effective).
Don't feed your husband a filthy magic substance (to get him to submit to anything you do) because it's a big sin.