出尔反尔 (chū ěr fǎn ěr) — to go back on one's word; to contradict oneself

Definition

Examples

• 你怎么能出尔反尔呢？
  Nǐ zěn me néng chū ěr fǎn ěr ne?
  How can you go back on your word?
• 他这个人总是出尔反尔，没人相信他。
  Tā zhè ge rén zǒng shì chū ěr fǎn ěr, méi rén xiāng xìn tā.
  He always goes back on his word; no one trusts him.
• 既然答应了，就别再出尔反尔。
  Jì rán dā ying le, jiù bié zài chū ěr fǎn ěr.
  Since you've promised, don't go back on it.