Fiffany's - a piece of jewelry that is an imitation of a Tiffany's piece. Fake Tiffany's jewelry.
Erica - I love Ann's new Tiffany's bracelet.
Kate - That's not a TIffany's, that's a Fiffany's.
Erica - What, it's a fake? Looks so real.
Kate - Yep, imitation at it's best.