Roronoa Zoro's Dragon Twister is known in Japanese as "Tatsu Maki", a technique in his Three Sword Style Santoryu repertoire from the One Piece series. If one were to literally translate "Tatsu Maki," it would mean "Dragon Twister," a name that, actually, does justice to the powerful, tornado-like wind created during its execution.
In the Dragon Twister technique, Zoro rotates really fast while brandishing his three swords. Consequently, this whips up a dragon-like tornado that not only slashes but also blows the opponents away with force. Such a procedure thus reaps both the offensive benefits of cutting with a sword and the defensive advantages of keeping enemies at bay, thus becoming an all-utility tool in the arsenal of techniques at Zoro's command.
The visual representation of One Piece for the Dragon Twister is simply amazing. Maybe what gives this raw power and creativity to the execution of the technique, often with an aura of a dragon-like tornado effect, is from the creative representation of sword techniques within the series. This striking look created the Dragon Twister as one of the most recognizable and iconic moves belonging to Zoro.
This technique, Dragon Twister, surprisingly is not unique to Zoro's Three Sword Style. He has shown the capability of being able to do a variation of this with two swords only, albeit less effectively than it. This makes the mentioned technique very adaptable and thus shows the ability of Zoro as a swordsman and how he would be able to alter his technique in view of the situation.
Other than in the manga and anime, Dragon Twister has been immortalized in a number of statues used to collect. One of these was done by Espada Art. This particular statue captures Zoro mid-technique, showing off his iconic three-sword style and the dynamics of Dragon Twister. Only the necessity to make merchandise based on this technique speaks of its popularity to fans and its essentiality in the move set for Zoro.
What might be of interest in the Dragon Twister, however, is that this is done without the consumption of Devil Fruit power. Zoro has created very heated debates among the fans about whether or not he is able to perform such feats entirely as a human and just what is possible for humans in the One Piece world. Dragon Twister manages to become an example of how talented characters in this series can do many things that may initially appear superhuman through intense training and willpower.
The technique has also appeared in the One Piece Card Game as "Dragon Twister Demolition Breath." In it, it is portrayed as a counter card, able to raise a player's Leader or Character card's power by 4000 points. This aspect of the card game truly makes Dragon Twister one of Zoro's trademark techniques.
Zoro has used it quite visibly throughout the series in many situations, really proving to show the versatility of the technique. One notable instance occurred during the Wano Country arc when Zoro used it in a gambling house. Using the Dragon Twister in this kind of situation only shows just how much intimidation factor is within, and even Zoro himself doesn't shy away from using his skills in different situations.
This correlates with the series' progress: Zoro has grown stronger, so the Dragon Twister has. Characters and fans alike have observed that its potential for destruction has risen with Zoro's growth as a swordsman. In such a way, the progress of the Dragon Twister becomes a literal benchmark in checking Zoro's progress toward his quest of becoming the greatest swordsman in the world.
Popular, Dragon Twister has created enough discussion among fans, with numerous tutorials on how to "master" the technique, at least conceptually. Web content and social media are very often shared with links that provide further discussion on the strategy and power behind the move, encouraging fans to explore deeper into the mechanics of Zoro's swordsmanship.