According to data provided by Twitter, the use of the red flag emoji has grown 455% on the platform in the last week, and on Tuesday it was used in 1.5 million tweets globally.

If you updated to iOS 9.1 last month, you had a happy surprise: over 150 new emoji. Among them were a cheese wedge, a middle finger, a mosque, a synagogue, and a clown face. All were approved by ...