speak of the devil

噂をすれば影

Ex

  • Speak of the devil, here she comes!
  • Speak of the devil! We’re just talking about you.
    ※悪い噂以外でも使える

Reference source

  • https://ejje.weblio.jp/content/speak+of+the+devil
  • http://girl-lish.com/speak-of-the-devil/