SHAM PLEA. One entered for the mere purpose of delay; it must be of a matter which the pleader knows to be false; as judgment recovered, that is, that judgment has already been recovered by the plaintiff for the same cause of action. 2. These sham pleas are generally discouraged, and in some cases are treated as a nullity. Barn. & Ald. 197, 199; 5 Id. 750; 1 Barn. & Cr. 286; Archb. Civ. Pl. 249; 1 Chit. Pl. 401.