Yinrih have microbes in their gut that aid in digesting food. This process produces gas as a byproduct. Monkey foxes have a similar taboo (and consequent humor) about farting as humans do.

This humor is indulged in by both child and childish alike. In particular, pups (and pups at heart) play a game called rMPqg, which literally means the hem or fringe of a cloth. In this case, it refers to the hem of a curtain hung in a doorway. Upon farting, a pup must yell “rGHrGHg!” (“Safety!”). If he fails to do so before a second pup can yell “rMPqp!”, the second pup may hit the first until the first pup touches the hem of a curtain. This game is also played by military grunts with too much time on their paws.

Wind Fruit is so called because it produces a large amount of gas when eaten. It's high in a particular sugar that gets rapidly fermented in the yinrih's gut, to the point that one can get drunk by eating the fruit raw.