Definition of "yiff" []

• Representing the bark of a fox (especially while mating). (interjection)
• To express happiness, to state that something is sexy. (interjection)
• A bark. (noun)
• The act of yiffing. (noun)
• Pornography of furries (fictional anthropomorphic animal characters). (noun)

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• "I never really cared for the idea of dressing up as a cartoon animal, and the yiff was a real turn-off as well."
• "To address only the CSI episode for a moment, I have not ever, and highly doubt that I will ever be involved in, bear witness to, or even hear about, a 'yiff' pile."
• "Usually, when you hear about people who dress up like life-sized stuffed animals, it's in the context of an unfriendly internet joke, a sex gag on Entourage, or an insult that ends with "yiff in hell.""