U+23EC · emoji since 2010
The fast down button is two arrows pointing down, for jumping to the bottom. It means scroll down fast, skip ahead, and head to the end.
It marks quick descents and fast-forwarding downward, the control for get me to the bottom.
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 Fast Down Button emoji. In everyday chat most people just call it the fast down button 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.