Spread like wildfire.
Spread like wildfire.
When something "Spread like wildfire," it spreads quickly and extensively, just as a wildfire uncontrollably expands in dry conditions. This idiom can be applied to news, gossip, or even a technological virus, describing how quickly they can circulate and reach a large number of people.
The news spread like wildfire.
The news spread extremely quickly.
Rumors about the incident spread like wildfire.
Rumors about the incident spread rapidly.
Once the video was posted, it spread like wildfire across the internet.
After the video was posted, it quickly became widespread on the internet.