no one under eighteen (U+1F51E)

The "🔞" emoji is a symbol that represents a prohibition or restriction related to age. It is often used to indicate that the content that follows is intended for mature audiences only, and is not suitable for children. This emoji is commonly used in social media posts, online forums, and other digital platforms to warn users about the nature of the content. It can also be used in a more general sense to convey the idea of something being off-limits or restricted to certain individuals. The "🔞" emoji is a way to ensure that users are aware of the content they are about to view and can make informed decisions about whether or not to engage with it.