yiffes 

A combination of yikes, yuck and the f-word. An exclamation of intense astonishment. Followed by two exclamation points.

Yiffes!! You're pregnant with Anderson Cooper's lovechild?

yiffes by metssox April 27, 2007

Yifferendum 

A detailed book with a list of all known people who identify as a furry

Man 1: Hey man! Do you know if Kyle is a furry?
Man 2: No clue, lemme go check the yifferendum

Yifferendum by ZeroHero75 March 27, 2021

YiffStar 

An adult-oriented Furry community featuring thousands of original stories and pictures, a chatroom, forums, a MUCK and more. It is a very popular place within the furry fandom to hang out, show off artwork and stories, make friends, and find people to yiff.

Hey, I just found the hottest picture of a Snow Leopard on YiffStar! Want the link?

YiffStar by Webcrawler October 14, 2007

Yiffed out 

Used to express when one has had enough "Yiffing"

"I'm not performing like I normally do, I'm really yiffed out"

"She said something about being yiffed out, I guess she was up all night on the computer"

Yiffed out by Diamondback25x November 20, 2009

Yiffed 

Connected with Anthropomorphology, yiffed is the past participle of yiff. (That means that it is the past tense of yiff) When two or more anthros have mated, you say, they have yiffed

Yiff, Yiffing, Yiffed. In that order

When we finally got home we yiffed all night.

Yiffed by Player May 6, 2005

Yiffer 

Noun: Someone who likes to yiff; to yiff frequently

Matt is such a yiffer.

Yiffer by Lupis Lupine July 25, 2003

Yiffystick 

A furry character's penis.

Put yer yiffystick into my murrhole!

Yiffystick by Sirec October 5, 2006