话里套话

話裡套話
huàtàohuà
  1. to use seemingly innocent conversation topics as a pretext to glean information
  2. to touch upon other matters not central to the topic being discussed

CEDICT

  1. 谈论某事牵涉其他事项
  2. 谈话中有测知他人隐私

重編國語辭典

Entry Composition