A girl who is not your girlfriend but offers the same benefits. Much like 7Up, you like it... it likes you! A title for those guys who are afraid of commitment. A little like a fuck buddy, but one step up, maybe a bit of like/love. Did I say love?
Me and my un girlfriend are into non committal sexual realtionship, then we usually eat.
by d0c July 23, 2006
The kind of girl that you have an open relationship or little relationship with. Like dating casualy, but not going steady.
Yeah, I guess since we never decided to go steady she's my ungirlfriend.
by Puchiko August 27, 2005