Joinder in demurrer
JOINDER IN DEMURRER. When a demurrer is offered by one party, the adverse party joins with him in demurrer, and the answer which he makes is called a joinder in demurrer. Co. Litt. 71 b. But this is a mere formality.
A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.