Double-fist punch
Kirk fights a Gorn using a double-fist punch.
A double-fist punch was a hand-to-hand combat technique used to incapacitate an opponent.
Many Starfleet and Bajoran Militia officers were trained to use double-fist punches.
In an alternate 1944, Jonathan Archer was a prisoner of the Nazis being transported by truck, with his hands tied together. He took advantage of having his hands tied together by delivering a double-fist punch to one of his Nazi captors. (ENT: "Storm Front")
In 1947 during the Roswell Incident, Odo used double-fist punches to incapacitate members of the United States Army Air Forces in order to ensure Quark, Rom, and Nog could escape with him to board Quark's Treasure and return to 2372. (DS9: "Little Green Men")
In 2024, Pedro, who was handcuffed, used a double-fist punch to take out ICE officer Morris. (PIC: "Fly Me to the Moon")
In 2266, when Spock was battling a salt vampire that took on the appearance of Nancy Crater; he used double-fist punches to strike her multiple times, but they were completely ineffective. (TOS: "The Man Trap")
In 2267, while fighting a Gorn, Captain James T. Kirk also attacked with a double-fist punch that was equally ineffective. (TOS: "Arena")
While fighting Thelev on the USS Enterprise, James T. Kirk took him out with a double-fist punch. (TOS: "Journey to Babel")
In 2327, shortly after graduation from Starfleet Academy, Ensign Jean-Luc Picard got into a fight with a Nausicaan on Starbase Earhart, and he used the double-fist punch, although he was stabbed through the heart. (TNG: "Tapestry")
In 2368, Deanna Troi, possessed by the consciousness of an unidentified alien prisoner on a moon of Mab-Bu VI, used this maneuver against Captain Jean-Luc Picard in his ready room during an attempt to commandeer the USS Enterprise-D. (TNG: "Power Play")
In 2380, while facing Vindor in a trial by combat ritual, Commander Jack Ransom used the double-fist punch several times, calling out the move by name as he used it to incapacitate the larger alien. (LD: "Temporal Edict") Later that year, he also used the technique against a boarding party of Pakleds. (LD: "Crisis Point")