大鳴大放 [－鸣－－]

Jyutping daai6 ming4 daai6 fong3
Pinyin dà míng dà fàng

Definitions (CC-CEDICT)
  1. (idiom) to freely air one's views
  2. to be heard far and wide
  3. to attract a lot of attention
Definitions (Wiktionary)
  1. noun
    free airing of views
  2. name
    free airing of views (PRC political campaign launched by Mao Zedong in 1957 to invite criticism outside the Party)