敝帚千金 [－－－－]

Jyutping bai6 zau2 cin1 gam1
Pinyin bì zhǒu qiān jīn

Definitions (CC-CEDICT)
  1. lit. my worn-out broom, a thousand in gold (idiom); fig. sentimental value
  2. I wouldn't be parted with it for anything.
Definitions (Wiktionary)
  1. phrase, figuratively, idiomatic
    to cherish something of little value simply because it is one's own
    (syn.) 敝帚自珍