A dude who's an athlete, hot and everyone thinks he actually gets lots of pussy, but he's actually chill, kinda shy, likes music, introverted, super smart, kind of a nerd and wants to meet someone he vibes with.
Michael: Yo Marshall hot. He must get lots of pussy
Derek: Nah, he's a Popular Loner
Used to suggest someone has an unusual or weird name. So unusual in fact it will probably be the only name of its kind listed in the phonebook - hence the term phonebook loner.
Person 1: I'm getting married next month.
Person 2: Oh yeah - what are you going to be known as?
Person 1: Mrs Manibaboo....
Person 2: OMFG! Your going to be such a phonebook loner with that name! There cant be anyone in the area with that name.......
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.