藏垢納污 [－－纳－]

Jyutping cong4 gau3 naap6 wu1
Pinyin cáng gòu nà wū

Definitions (CC-CEDICT)
  1. to hide dirt, to conceal corruption (idiom); to shelter evil people and accept wrongdoing
  2. aiding and abetting wicked deeds
Definitions (Wiktionary)
  1. phrase, idiomatic
    Synonym of 藏污納垢／藏污纳垢 (cángwūnàgòu, “to shelter evil people and countenance evil practices”).
    (syn.) 藏污纳垢, 藏污納垢