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1.
A man who is somewhere between a friend and a boyfriend. This can be a temporary state from which he will eventually become a boyfriend or a permanent state of more than friendship. Even if you have only hooked up with him once, if you have crossed that line, he's a man-friend.
That guy you keep trying to convince people is not your boyfriend: he's your man-friend.
by Marissa Carol April 30, 2006
 
2.
A male significant other that possesses a higher level of maturity than the typical "boyfriend". It is usually a term used by women that have very high standards in a relationship and do not have the patience to tolerate immature bullshit.
"Is Julie still dating whats-his-face?"
"Nah dude, she upgraded to a Manfriend."

"Wow that is one classy fellow....definitely Manfriend material."
by jkulaga February 09, 2010
 
3.
A man friend is someone that you are talking to and hooking up with but are still in between stages of being friends and/or boyfriend and girlfriend
"Today my man friend and I were discussing if we wanted to take our relationship to the next level."
by b!gr3d January 08, 2010
 
4.
A guy you are not dateing and is not your boyfriend but is more then just a friend. You both act like you're in a relationship but it is not official.
"are they dateing?"
"no thats manfriend"

"who's that guy she's with?"
"That's her new manfriend"
by Unicorn of the sea February 01, 2011
 
5.
the mature term of referring to a significant other who is of the male sex.
I'm not looking for a boy, i don't want a boyfriend.
i need me a 'MAN friend'.
by Mikatron May 02, 2007
 
6.
A more mature version of a boyfriend. This term is occasionally used as a pickup line by males to emphasize their maturity.
Oh, so you got a boyfriend? Well, call me up if you ever want a MANFRIEND.
by Fr. Q April 27, 2008
 
7.
A prefered male partner
Natasha has a manfriend named Igor. Hopefully, they will keep it rated 'G' .
by ldsfjoakdfjda December 13, 2005