If you’ve noticed images of red flags filling up your Twitter feed, you’re not alone.
The platform is bursting with warnings about anything you’re able to think of.
Not a baseball fan?
Promise you’ll pay someone back later?
Top your pizza with pineapple?
Tuesday saw 1.5 million red-flag-emoji tweets globally.
What do all the red flags mean?
The dictionary pinpoints the first usage of red flag as a noun dating back to 1748.
How did the red flag trend start?
What are people warning each other about?
In short, everything.
Not all the tweets are serious; many of them are jokes.
One Twitter user tweeted: “My favorite movie is Fight Club.”
My favourite movie is Fight Club.
Another tweeted: “My team is the Dallas Cowboys.”
“Golf is not a real sport.”
