The alias of Tiffany, a member of the Korean girl group, SNSD (Girls' Generation). Notoriously known for mispronouncing her nickname, "Brighter than Jewels" Tiffany, as "Brighter than Mushrooms" Tiffany; hence the nickname "Mushroom Fany." This has caught on with the SNSD fandom and has been adored by fans alike.
Tiffany: Hello! I'm "Brighter than mushrooms" Tiffany!
Fan: BWAHAHAHA!!! LOVE YOU MUSHROOM FANY!