狗尾續貂

狗尾续貂
gǒuwěidiāo
  1. lit. to use a dog's tail as a substitute for sable fur (idiom)
  2. fig. a worthless sequel to a masterpiece

CEDICT

to write a bad sequel to a fine work

Wiktionary

比喻任官事物前後相稱參見不足

重編國語辭典

Entry Composition