I told you exactly what it is, if you want a more in depth analysis of what it is, it is triggered when your recvq (Receive Queue) becomes filled with excessive amounts of data that are being sent to you as a result of an action taken by you. If you don't like that definition, and you want to tell me I'm wrong, be my guest, but seeing as how I just looked at the source code for several IRCds and they all do exactly what I said, it would be like arguing that 2+2 != 4. It has NOTHING to do with you flooding the server, nothing at all. If you flood the server you will be killed with a Sendq exceeded message, NOT an excess flood message. Again, disagree with me if you want; but you are wrong.