Net Junkie 

Person who spends too much time on the internet, often to the point where there social life is limited to MSN, bebo and myspace.

George 'So, Tim what are you doing today'
Tim 'Probably just on the computer all day'
George (under his breath) 'Net junkie'
Tim 'What'
George 'Nothing.'

P.S if you are reading this you are probably a net junkie.

Net Junkie by Stapler3 October 18, 2007

Net-Junkie 

Net-Junkie: (Noun) a person who is addicted to the internet or spends a great deal of time surfing the web or 'Diving'. Net-junkies tend to not have lives, although, on rare occasions, one of them unwittingly downloads it from the internet.

Person 1: Oy? Where's Steve?
Person 2: Oh, Steve's on the Net again.
Person 1: He's such a Net-Junkie.

Net-Junkie by Nekko Erickson January 18, 2006