FJOIN

Usage: FJOIN <nick> <#channel>
This will force the user specified by nickname into the given channel.
Examples:
/fjoin Nicole #kitchen
This can be a way to send someone who needs help to the proper channel, especially if they are having trouble joining channels. However, it can be disorienting to find yourself in a channel you didn't intentionally join. It is often a good idea to inform the user of what you are going to do.