What is yiff?
Yiff is slang for explicit sexual content within the furry fandom, covering art, writing, and roleplay involving anthropomorphic animal characters. It functions as the fandom's own word for adult material, in the same way NSFW does more broadly.
Published by the Girlfriendly AI editorial team ·
The word originated in furry communities in the 1990s, reportedly as an onomatopoeia for a fox call, and spread through early online chat channels. It is used inside the fandom without much ceremony; outside it, it is often misunderstood.
In AI chat the term is most useful as a search signal. Someone looking for yiff is looking for explicit roleplay with anthropomorphic characters specifically, which is a different request from a general NSFW chat and usually means they want the character design and species details taken seriously rather than treated as a costume.
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Related terms
- What does NSFW mean?
NSFW stands for “not safe for work”.
- What is erotic roleplay?
Erotic roleplay, usually shortened to ERP, is collaborative roleplay in which the scene is explicitly sexual.