A special kind of thong underwear that has a puff of fur covering the genital area. This puff looks not unlike a Furby
, which was a popular doll in the 1990s. Crotch Furbys are worn only by extreme sluts who know that they will be prancing around in their underwear, and feel that a brightly colored fur puffs will enhance their overall physical appearance.
Joey's girlfriend wore a crotch furby to her big photoshoot because a regular thong doesn't look any good on her.