Meaning
A furious, usually red face with a black bar of jumbled symbols like # ! @ % over its mouth, the comic-strip way of censoring swear words.
It means cursing, or being so angry that only bad words would do, without actually typing them. It is used for rage at bugs, bad referees or rude drivers, often with humour. It is the angriest of the classic faces. Example: “Lost all my progress because the game crashed 🤬”.