Meanings
From stop the presses, US newspaper-printing jargon.
How to pronounce "stop press":
AU
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.
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.
Used to grab attention, implying importance, news-worthiness, etc.