I'm not joking. you obviously don't want to learn. I gave you the link that covers everything you could possibly need to know. here, let me hold your hand:
http://en.wikipedia.org/wiki/Internet_Relay_Chat
http://www.irchelp.org/irchelp/new2irc.html
those are the 5th and 7th links on the google results. are you too lazy to read those too?
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