U+1F4EB · emoji since 2010
The closed mailbox with its flag up means there's mail waiting to be collected. It marks deliveries and a full postbox.
It is the cheerful icon for you've got mail, the little flag signaling something has arrived.
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 Closed Mailbox with Raised Flag emoji. In everyday chat most people just call it the closed mailbox with raised flag 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.