Side spin on the cue ball that causes it to unnaturally roll off a cushion (contacted at an angle) against rather than with the ball's momentum and direction of travel. If angling into a cushion that is on the right , then reverse english would be right english , and vice versa. The angle of deflection will be steeper (narrower) than if no english were applied. The opposite of running english , which has effects other than simply the opposites of those of reverse english .