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See also: YIFF



(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium. Particularly: “We need quality sources for these claims.”) Yiff was part of a range of onomatopoeic words that form a pseudo-language used by the furry role-playing community: yiff, yip, yerf, yaff, yarf, growf, and growlf (in order from most positive connotations to most negative connotations). Yiff meant yes or an exuberant hello! Later, yiff was assigned a meaning of a sexual proposition, a meaning that had previously been assigned to yipp (a coarse form of yip). In modern use within the furry community, yiff almost exclusively refers either to sex between anthropomorphic animals, or pornographic depictions thereof.




  1. (onomatopoeic, apocryphal) Representing the bark of a fox (especially while mating).
  2. (of a person, informal) To express happiness, to state that something is sexy.


yiff (usually uncountable, plural yiffs)

English Wikipedia has an article on:
  1. (slang, informal) Sex, especially between furries (fictional anthropomorphic animal characters, and/or members of the community surrounding their celebration).
    "FurryMuck yiffs are like real-life yiffs - there is a time and place for everything." — [1]
  2. (slang, informal) Pornography of or involving furries.
    Do you draw yiff?



yiff (third-person singular simple present yiffs, present participle yiffing, simple past and past participle yiffed)

  1. (transitive, intransitive, slang, informal) To have sex, to mate (said of animals, especially foxes, or people dressed up as animals).
    • "He's a furry fan and he's okay,
      He MUCKs all night and he yiffs all day."
    • "Well, according to his sig, he waits until it moves before he yiffs it." — [3]
    • 1997 October 17, StarChaser, “What to genocide”, in rec.games.roguelike.nethack, Usenet[4], message-ID <3448af39.75668367@>:
      Monsters snicker at me, succubi refuse to be seen with me, my dog tries to yiff my leg, shopkeepers say ‘No shirt, no shoes, no service’.
    • 1997 September 22, Locandez, “Hypothetical Question #3: acting natural”, in alt.lifestyle.furry, Usenet[5], message-ID <na.dab87347cd.a40040lyndale@argonet.co.uk>:
      And even if foxes are allowed to yiff more than once, I’d still have to wait for the vixen to come into heat.
    • 1997 September 23, MegaDog the Nettweiler, “Hypothetical Question #3: acting natural”, in alt.lifestyle.furry, Usenet[6], message-ID <1d3DsMAQZ$J0Ew2R@canismajor.demon.co.uk>:
      Well, i’ve witnessed male foxes queueing up to yiff one of my local vixens… repeatedly!
    • 2012, Joanne Reay, Romeo Spikes:
      I mean, the urge to yiff is a pretty weird thing to admit to. Not something you can just drop into conversation. But look at them, hundreds of them, all gathered together in a Vegas hotel, exchanging information and experiences, the knowledge of their rare urges ever growing.
    • 2017, Joe Strike, Furry Nation: The True Story of America's Most Misunderstood Subculture, →ISBN:
      We can tell them how we never stop yiffing and we met at a Starbucks while wearing our suits.
  2. (transitive and intransitive, slang, informal) To propose cybersex to someone.

Derived terms[edit]




Middle English[edit]

Etymology 1[edit]

From Old English ġif.



  1. if
    • c. 1438, John Lydgate Fall of Princes:
      Yiff ther was lak, thou woldest crie & pleyne.
    • c. 1438, John Lydgate Fall of Princes:
      And yiff that trust with pryncis wil nat tarie,
      Litil merueile thouh the peeple varie []
    • c. 1385-1386, Geoffrey Chaucer, Legend of Good Women:
      [] That yiff that god that hevene and erthe made
      Wolde haue a love For beaute and goodness
      And womanhede and trouthe and semelynesse […]
      (please add an English translation of this quote)

Etymology 2[edit]

From Old English giefan.



  1. Alternative form of yiven
    • 1393, Jean d’Arras Roman de Melusine:
      Another ordre to you yiff I shall,
      A knyght will you mak of full hye degre
      As your brethren ben named ryght roiall.