“Newsjacking” is the act of leveraging breaking news to get traffic to your content.
Let’s say there’s a blackout at a Superbowl, and Oreo immediately tweets out an image of an Oreo cookie in the dark with the words, “You can still dunk in the dark”. Yeah, you remember when that happened, right? It’s an example of newsjacking, and that one tweet (which cost nothing) was worth more in sales and publicity than buying a Superbowl commercial.