fly-blownadj1 (of meat, etc) bad or unfit to eat, because contaminated by flies' eggs （指肉等）（因有蝇卵）腐败的, 不宜食用的.2 (fig 比喻) in a bad condition; dirty or spoiled 破烂的; 肮脏的; 损坏的.
牛津英汉双解词典