justafriend 

A person that someone is obviously dating,
which is obvious to every single person in the world except said victim, er, person.

So, you hanging out with Kristen tonight? Nope, her justafriend is taking her to dinner and movies.
Oh.

justafriend by VAKI5 May 8, 2005

justafriend 

A member of the opposite sex with whom hanging out should not be subjected to a parent's traditional rules of dating, curfew or scrutiny that generally apply to a teenager's boyfriend or girlfriend.

So what if he's 18 and I'm 15, why can't we drive to the theater? He's justafriend.

No, her parents won't be home when I go to her house tonight to watch a movie. But that's okay, she's justafriend.

justafriend by Greg Gerber October 12, 2004