Gomu Gomu no Jet Gatling (ゴムゴムのＪＥＴ銃乱打（ガトリング） Gomu Gomu no Jetto Gatoringu?, literally meaning "Rubber Rubber Jet Gatling")
This is one of Luffy's strongest techniques. Luffy stands still, bends forward and moves his arms upwards at speeds which they can no longer be seen, leaving only jet streams in their place, very much like how the Jet Pistol looks.
This results in an effect comparable to Foxy's Kyuubi Rush, except that Luffy does not need to make use of Noro Noro photons to slow down his target in order to accumulate the hits. The hits land so fast that, after a volley, they seemingly connect simultaneously. The circles of air bursts from the punches surrounding Luffy, resemble the many barrels of an actual Gatling gun. However, due to the large amount of energy it uses, Luffy cannot sustain it for long, although the time it is used is longer than the regular Gatling.
During his fight against the combined efforts of Marigold and Sandersonia, Luffy demonstrated an omnidirectional version of this move by falling on his back, then, while lying down, launches a rapid barrage of powerful high-speed punches from the ground, effectively nullifying both sister's attacks. In the Viz Manga and FUNimation dub, this is called Gum-Gum Jet Gatling.