The adjective used to describe someome who signs in on MSN, realizes that their ex Girlfriend/someone else they don't want to talk to is online. Thinking "Oh, crap!" They appear offline, and talk to people they do want to, without being spotted.
OLLIE: Hey man, what you up to?
SAM: Not much... Hey I thought you were offline?
OLLIE: Nah mate, Lauren is on, I'm just pretending to be offline so she doesn't get up me.
SAM: Oh, I see, going MSN ninja. Good idea.
by John Hylius June 15, 2009
Get the MSN Ninja mug.
When you're talking to someone on msn and they just sign-out or ignore you for a large period of time without saying "g2g" or "brb" or something similar
I was talking to Jimmy before and I asked him something, I waited for 10 minutes to receive a response and then he just signed out. I sat there thinking "what an MSN Ditcher"
by andale524 October 14, 2009
Get the MSN Ditcher mug.
Someone who either doesn't have many contacts on MSN or simply cant be bothered to start a conversation with anyone despite there being many people online but no one is speaking to them.
To attract attention they will sign out for a couple of seconds then sign back in again, trying to draw attention to themselves so that people will talk to them.
Person 1: OMG that Jonathan has signed in so many times this past hour after being offline for like a second!

Person 2: He's an MSN-loner, he's just trying to get attention.
by TheVeg July 11, 2008
Get the MSN-Loner mug.
Danielle: Omg! im going away for a week to Majorca! That means i cant go on MSN!

Sophia: OMG!! how are you gona live???!!!
by Emma the sexy beast May 24, 2005
Get the MSN Messenger mug.
Msn sex is when someone repeatedly signs in and out of msn, yahoo, any im's. In and out motion is sex. Usually, this is just to get attention from someone who won't talk to the person otherwise.
*Aly signs in*
*Aly signs out*
*Aly signs in*
*Aly signs out*
*Aly signs in*

*Jacob gets annoyed*

@Aly "Quit having msn sex!"

@Jacob "No problem. Mission accomplished!"
by ishtacosandmayo May 6, 2009
Get the msn sex mug.
Someone who is unable to communicate with another by means of actual communication and in turn only trys to have a relationship with people through a internet based chat.
Person1: My relationship with Jane is so akward, it's like she's avoiding me whenever i see her. But when i'm on msn, she starts chatting to me like crazy.
Person2: She's one of them Msn-Soul people. Stay away from them.
Person1: Wow, that's disgusting!
by Darioples September 20, 2006
Get the Msn-Soul mug.
The condition that you cant help pressing the 'enter' button once you finish typing, even it is not a complete sentence.
"yo"
"wtsup"
"today i went to the mall yea"
"starbucks has this new drink"
"with jelly in it"
"i like it so much"
"!!!"

"dude, you totally have msn syndrome, finish your sentence in one box!"
by myyk July 21, 2009
Get the msn syndrome mug.