弃若敝屣

棄若敝屣
qìruòbìxǐ
to throw away like worn out shoes

CEDICT

to throw away something as if it were worthless

Wiktionary

敝屣，破鞋。弃若敝屣指像扔掉破鞋一样的抛弃。语本《孟子．尽心上》：「舜视弃天下犹弃敝屣也。」后用以比喻毫不可惜。如：「他向来澹泊名利，对于地位权势弃若敝屣。」

重編國語辭典

一点都不可惜

維基詞典

Entry Composition

1 弃 qì
  1. to abandon
  2. to relinquish
  3. to discard
  4. to throw away
2 若 ruò
  1. to seem
  2. like
  3. as
  4. if
3 敝屣 bìxǐ
  1. worn-out shoes
  2. a worthless thing