An alternate word to describe a release of flatulence. The concept comes from the action the release is. The gas release can be of varying spread consistencies. In this way, a "cloud" can be broken down in an odor spectrum alongside the common color spectrum, ranging from white as most harmless, to black, a nose wrinkling, vicious one.
"I dropped a black cloud in the weight room, and the guy next to me put his weights down and had to leave the zone."
"I just clouded, check it out milton."