THE DEFINITION OF THE FURRY SLANG WORD "YIFF" AND HOW IT MAY BE USED I wrote this based on what I've been told about the meaning of yiff and how I've seen it used. First of all, “Yiff” was created in and is unique to the furry community, both online and offline and is basically used in the furry community much the same way that humans use the word “Sex.” For example, “Yiffy” = “Sexy.” "Yiff" has become somewhat of an abstract word, though basically, "yiff" is a furry sex word. As a noun, it's used to refer to the sound foxes make as they are mating. Some also use it to describe what happens to males who view anthropomorphic animal pictures with hard-core sexual content. As an interjection, it is used like a "bark", but may also have sexual overtones. It just depends on the usage and/or intended meaning. As a past, present or future tense verb, "yiff" means "to have sex with. When used like that, it's used in much the same way as what a certain (and much more crude) 4-letter word that starts with "F" is. It can be used as "Who's up for a yiff?" which means "Who's up for sex?" or "Are you up for a yiff," which means "Are you up for sex?" "Yiffing" can mean "Having sex with," "Is having sex with" or simply "Having sex. "Yiffing" can also mean "Talking/Chatting." For example, "We were yiffing in the chat room" means "We were talking/chatting in the chat room." As an adjective, to describe something as "yiffy" would be to say it has sexual value. For instance, someone might refer to an explicit picture of or provocatively dressed or just plain attractive member of the opposite sex as "yiffy," or it can mean someone feeling sexy, horny, amorous, etc. For example, "I'm feeling Yiffy" can mean "I'm feeling sexy" or "I'm feeling aroused." It takes on a lot of meanings. "Yiff Me" would basically be the command or request "Have sex with me," depending on the inflection at the end of the sentence. "I yiffed at her" means "I barked at her" and may or may not have a sexual overtone, it just depends on the situation and intended meaning. It can also be used as "I yiffed her," which means "I had sex with her." "She yiffed at me," which means "She barked at me" also may or may not imply a sexual overtone. It can also be used as "She yiffed me" which means "She had sex with me" or "She yiffed at me" which means "She barked at me." And finally, "Yiff" and its derivatives are never, ever used as a swear word. For example, "I can't find the yiffing thing," the intended meaning and use of which is the same as "I can't find the (four letter “F” word)ing thing" is using it as a swear word.