铁粉 Traditional form: 鐵粉 Pinyin (reading): tiěfěn Definitions: (slang) hardcore fan (abbr. for 鐵桿粉絲/铁杆粉丝 (tiěgǎnfěnsī)) Characters: 铁 - iron; strong, solid, firm 粉 - powder, flour, cosmetic powder; plaster Traditional characters: 鐵 - iron; strong, solid, firm 粉 - powder, flour, cosmetic powder; plaster