打黑

dǎhēi
to crack down on illegal activities; to fight organized crime

CEDICT

to combat underworld gangs

Wiktionary

Entry Composition

1 打 dǎ
  1. a semantically light, transitive verb that is combined with various grammatical objects to form compound verbs and verb-object phrases with a diverse range of meanings (e.g. 打伞 dǎsǎn "to hold an umbrella", 打电话 dǎdiànhuà "to make a phone call", 打针 dǎzhēn "to get an injection", 打手套 dǎshǒutào "to knit gloves", 打气 dǎqì "to inflate")
  2. to hit; to strike
  3. to fight
  4. (coll.) from; since (as in 打那以后 dǎnàyǐhòu "since then")
2 黑 hēi
  1. black
  2. dark
  3. sinister
  4. secret
  5. shady
  6. illegal
  7. to hide (sth) away
  8. to vilify
  9. (loanword) to hack (computing)

Containing this entry

唱红打黑 chànghóngdǎhēi