Jirōbō slams his hands to the ground. The strength of this slam is great enough to rip open a section of the earth in front of him and leverage it up into a wall, similar to a "tatami return" (畳返し). This wall of earth shields Jirōbō, usually from projectile attacks, but it can also be used against approaching physical strikes.
After acquiring Jirōbō's DNA, Kabuto Yakushi is able use this technique through his Strange Transmission Distant Shadow. In Kabuto's use, the ground is lifted up on both sides of him, thus shifting the approaching Amaterasu away from him.