A man with whom you share an amazing emotional bond and yet he is not your boyfriend.
My unboyfriend called today. We talked about everything except his girlfriend.
by Ms.Little February 19, 2010
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A boy, who a girl considers to be boyfriend material of showing interest but is otherwise unwilling to commit or admit feelings for said girl. Both may hang out and do boyfriend/girlfriend things, but not go steady.
Zach was Amanda's unboyfriend. They both always did things with eachother and Zach felt comfortible enough around Amanda to share his feelings with her. Just not his feelings for her.
by Jennifer February 22, 2006
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The guy a woman hangs out with and does boyfriend-girlfriend relationship things with, but she's not really going out with him nor does she want to sleep with him.
friend: What did you do last night?

woman: My unboyfriend and I went for a nice dinner.

friend: Did anything happen between you two yet?

woman: No, we're just friends who happen to be undating.
by bambolii April 19, 2012
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a person who cannot be placed into a relationship due to their personal choice. See the Magnetic Fields song, "All My Little Words"
You told be that you're unboyfriendable. And I could make you pay and pay, but I could never make you stay.- The Magnetic Fields
by Shakranit September 14, 2011
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While being able to attract men, the inability to keep them as a boyfriend.
Even though Tara likes Sam she couldn't help but antagonize him and treat him in such a way that makes their relationship impossible. With this behavior, she is definitely "unboyfriendable".
by lynnpd99 February 28, 2009
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A term used for a male (boy,guy,man,nigga,dog,pretty,sexy) you may have feelings for, but is unboyfriendable because of the following: bitchassness, wanksterism, and tomfoolery.
Kristi: That nigga is such a wankster ass!

Sonya: I know right he don't know what the hell he wants.

Alexis: He is for damn sure unboyfriendable!
by S Blade December 21, 2010
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Another term for benefits with benefits (which is overused and sounds to much like the "it's complicated" status on Facebook)
Look, I'm really attracted to you, but I don't want to just smash and pass, and I don't want a boyfriend either. Besides your cock is huge and you got game - why don't you be my unboyfriend for a bit? We both know once you put the boyfriend label on it, shit just goes down hill.
by Siouxsie Supertramp February 27, 2022
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