U+1F6A8 · emoji since 2010
The rotating police light means alert, emergency, or big breaking news. It flashes urgency and tells everyone to pay attention right now.
Online it hypes announcements and warnings alike, the siren you slap on a message to say this is not a drill.
In texting, 🚨 does not carry a widely used hidden or slang meaning, so you can usually take it at face value. People send it just as it looks, to add a little visual touch or set the mood of a message. Only a handful of emoji have a separate texting code, and 🚨 is not really one of them.
Its official Unicode name is the Police Car Light emoji. In everyday chat most people just call it the police car light emoji or describe what it shows. Copy and paste it from the button at the top of this page.
The 🚨 leads off a short phrase, and the rest of the words are written in cipher, every letter disguised as another emoji. Tap decipher to reveal the whole line.
Or make your own cipher in the translator.