Not to be confused with the common fart (very common if American), Brown Gas is the gas equivalent of excretion. Like everything in the universe ever, everything has a gas, liquid, and sold form (see; Genesis). Dihorrea may be a liquid turd, and normal turd is mostly solid, meaning that a gas must exist too. Brown Gas is that substance, and is notable for being brown and made of gas, hence the name “Brown Gas”. It is unique for unlike the regular fart, it has a poo concentration equal to or greater than the methane composition of the rest of the fart. This makes it more of a poo/fart hybrid, and thus worthy of its own recognition in science. A fourth state of turd, Brown Plasma, is theoretical but its likely existence is championed by Steven Hawking; it may be responsible for spontaneous h