stop press

/S T AA1 P R EH0 S/
noun
  1. 1

    The event or news article important enough to delay or interrupt the print, or require a reprint, of a publication, particularly of a newspaper edition.

verb
  1. 1

    Used to announce an event or news article important enough to delay or interrupt the print, or require a reprint, of publication, particularly of a newspaper edition.

  2. 2

    Used to grab attention, implying importance, news-worthiness, etc.

Source: https://en.wiktionary.org/wiki/stop%20press