Kill

From Afterxwiki

A kill is a quit command forcibly placed on a user by an Oper so that the user is disconnected from the IRC network. It does not do anything else to the user and often can return.

The user will have done something to breach the rules or the AfterX Charter in order to be killed, or it was their birthday (a traditional AfterX ritual), or they requested to be killed.

Continuing breach of the rules and the Charter can lead you being banned from AfterX.