SYNOPSIS. 

/quit <quit message>
				

SUMMARY. 

Quits from the currently active server. If no quit message is given, it quits with the default message. You can change the default message here:

So to quit the server with a message you would type.

/quit [SQ]werl has finally quit IRC!
		

And the rest of the channel(s) would see this.

[SQ]werl [~bleh@~bleh@19-342-98-234.client.attbi.com] has quit irc ([SQ]werl has finally quit IRC!)