話裡套話

话里套话
huàlǐtàohuà
  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. 談論某事時牽涉其他事項。
  2. 在談話中有意測知他人隱私。

重編國語辭典

Entry Composition

1 話 huà
  1. dialect
  2. language
  3. spoken words
  4. speech
  5. talk
  6. words
  7. conversation
  8. what sb said

classifiers: 種, 席, 句, 口, 番
2 裡 lǐ
  1. lining
  2. interior
  3. inside
  4. internal
  5. also written 裏 lǐ
3 套話 tàohuà
  1. polite phrase; conventional greetings
  2. cliché
  3. to try to worm facts out of sb