When a male polishes some nipply nipples that are cold with their pointer finger and thumb in a rotating fashion in order to perform a generous, warming, humanitarian service to a female. Usually performed on females that are cold, of whome are wearing t-shirts that reveal the soldier like stance of the nipple. Any slapping of the face is a sign of encouragement towards the action(they love it!)
I think she's cold, let's do our good deed for the day, as our scout master told us, and give her a tweener.
by Jesus19 January 22, 2009
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People who are sexually intimate with when they are both between relationships - similar to friends with benefits, but with the expectation that while the friendship will continue, the benefits are put aside when one of the people involved gets involved in a romantic relationship.
When I'm not dating anybody seriously, I call my tweener to see if he's single too.
by An Ethical Bimbo April 26, 2010
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same as the "taint" but funnier 'cause not everybody uses it and some people don't know wtf it is.

The skin between the genitals and the chocolate starfish.
On a mountain or BMX bike:

I was nose heavy on that last hit and my seat hit me right in tweener!

Man, I love it when your girlfriend licks my tweener.
by radicalrick November 7, 2009
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a chick that is between a dooer and a nooer. not super hot, but good enough to take home
I was so drunk last night that that tweener chick i took home looked like a total dooer!
by joe1317 July 18, 2008
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TWEENER (n.) - a dyke who has feminine features, mannerisms, proclivities, etc., but cuts her hair short and dresses butch in order to secure her lesbian identity. Connotations: the look does not suit her; she is insecure
She's just come out, so I think she's going through a tweener phase. She keeps buying Dickies and a-shirts, but talking about how she misses high heels.
by Eli August 15, 2004
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The girl's daddy is black and her momma be white, so she's a tweener.
by rick January 18, 2004
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A person who possesses both logical and creative attributes; doesn't fit into conventional stereotypes. A tweener is often highly intelligent.
Cally is a tweener, she is good at math and art.
by Hilda-lee August 26, 2006
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