Yiff
Yiff is a slang term used in the furry fandom to refer to pornographic content of anthropomorphic animal characters. It is considered a tongue-in-cheek term in the furry fandom. The term is also used as a way to insult members of the furry fandom, such as in the phrase "yiff in hell". Additionally, the term is also used in the plushie fetish community.
Furry conventions usually have strict policies regulating where yiff artwork can be displayed or sold.