I personally think that within the Naruto Anime and Manga, there are plenty of explanation and different types of fist bumps, they may all be just a fist bump but they represent a different kind of relationship each time. With the release of the Impure World Reincarnation, Utakata and the others were enveloped in a light of sorts before their bodies started to deconstruct and his soul returned to the afterlife. In the anime, during his time in Kirigakure , he wore a full body grey suit along with a variant of the village's flak jacket which had very low shoulder guards as well as a zipper and a pouch on the upper right chest. No doubt Sasuke will make his way there and try to cause as much death and mayhem as possible. Tonbee also commented that Utakata lacked greed.
nest...