This achievement is achieved when an enemy or boss grabs you and you have to rapidly press either the A, B, X, or Y button to get them off of you. You should get this naturally over the course of one playthrough as the bosses tend to grab you a lot.
UPDATE: On the harder difficulties, some of the monsters will grab you and will need to wiggle the Left Thumbstick back and forth to get them to release you. Doing this will also count for the achievement.