江洋大盗

江洋大盜
jiāngyángdàdào
(idiom) infamous pirate; (by extension) notorious bandit or robber

CEDICT

infamous pirate; (by extension) notorious bandit or robber

Wiktionary

横行于江河海洋抢劫行凶的盗贼。

重編國語辭典

Entry Composition

1 江 jiāng river

classifiers: 條, 道
2 洋 yáng
  1. ocean
  2. vast
  3. foreign
  4. silver dollar or coin
3 大盗 dàdào thief; bandit (esp. one who has gained notoriety)