He's pulling a killerman
One of the MOST annoying ICR user's out there, so annoying he has been defined!

Every time someone who is really annoying comes along, we tend to use this expression :)
User1 How do i do it?
User2 I already told u...
User1 Well tell me again
User2 NO, read what I said
User1 Shut up and tell me
User2 Wow, you're annoying
User3 Heh, he's pulling a killerman