順手牽羊

顺手牵羊
shùnshǒuqiānyáng
  1. lit. to lead away a goat while passing by (idiom)
  2. fig. to opportunistically pocket sb's possessions and walk off

CEDICT

  1. (figurative) to steal something under the cover of an emergency; to take advantage of a crisis for personal gain
  2. to steal something under the cover of an emergency; to take advantage of a crisis for personal gain

Wiktionary

趁便順勢，取走他人的財物。《黃繡球．第三回》：「這一天見來的很是不少，黃通理更代為躊躇，怕的是越來越多，容不下去，而且難免有趁火打劫，順手牽羊的事。」比喻趁機行事，容易而不費力。元．尚仲賢《單鞭奪槊．第二折》：「是我把右手帶住馬，左手揪著他眼扎毛，順手牽羊一般牽他回來了。」

重編國語辭典

  1. 方便行事，毫不費力
  2. 趁便順勢，取走他人的財物

維基詞典

Entry Composition

1 順手 shùnshǒu
  1. as an incidental action while doing sth else; while one is at it; in passing
  2. smooth; easy; without difficulty
2 牽 qiān
  1. to lead along
  2. to pull (an animal on a tether)
  3. (bound form) to involve
  4. to draw in
3 羊 yáng sheep; goat

classifiers: 頭, 隻