Yiffist 

Having an affinity for furries

My name is SimonBob and I'm a Yiffist because I love furries!

Yiffist by QuizMan September 21, 2004

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

Yiffystick 

A furry character's penis.

Put yer yiffystick into my murrhole!

Yiffystick by Sirec October 5, 2006

yiffstorm

When an unstoppable fuck meets an immovable clopject.

When a group of furries enter into a nonstop orgy of blood, sweat and fur.

"Sorry I'm late. I got caught in a yiffstorm. I barely made it out alive."

yiffstorm by Twhylight June 2, 2017

Yiffster

A furry who is also a hipster. Coming from the word yiff. Yiffsters hate every single fandom apart from the furry fandom and are so narrow minded that they will mainly focus only on things to do with said fandom. And will accuse you of trolling if you say anything about their fandom.

Open minded guy: Hey, ever watched anime before? it has the best fandom ever

Yiffster: (Never watched a single anime) Nah, I hate all animes and everything else that isn't related to the best fandom ever. You are just a troll.

Yiffster by Matsuo Musaki July 23, 2012