yiffy

adjective3

1. •
   Of or pertaining to yiff (sexual intercourse among furries).

   • It's just a list of furs who enjoy more adult, ie.^([sic]) yiffy, subject matter. — 1999
2. •
   (slang) Sexually aroused.

   • Hello world, I'm a big-breasted vixen Come on, get yiffy! A whole lot of spooge is what we'll be seein' We'll make you yiffy! — 1999
3. •
   (slang) Sexually attractive.