between 10 and 12 it is called tween because it is a double digit that dose not end with teen.
Lillian just became a tween because she is 10
by cracracrazy May 27, 2015
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a group of scene/indie kids who like to go out and have fun. Generally hated by the majority of the world due to their loud and charesmatic approach to life. Often scapegoated and blamed for any problems, because they actually have lives.
girl 1 - WHO WROTE 11S ARE NEEKS ON OUR BOARD!!

girl 2 - must have been the tweens

girl 1 - Damn those tweens.
by Holly.would December 5, 2006
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I am eleven years old, and tweens seem to be exactly what you think they are. Only a few of my classmates can write a coherent sentence, and even the ones who can are obsessed with Justin Bieber or Avril Lavigne or, in extreme cases, Twilight.
While many people seem to think there is a single, strict recipe for stupid tweens, they are actually all stupid in their own special way. For example, the girl who calls herself emo when the only songs on her iPod are by Taylor Swift, or the one who eats one piece of candy at recess and becomes "ZOMG SO TTLY HYPER-RAND0M!!1! CHEEZ!" Generally, most 10-12 year olds don't care what you call them, but you're better off calling the intelligent ones "Pre-teens" or "Young adults", to distinguish them from the 'other' ones.
Before you judge a tween, take a good look at her. Is she wearing an inappropriately short skirt? Is her bra stuffed? Is she squealing and dancing around with her friends? Or is she wearing appropriate clothes for her age, perhaps chatting with a friend or on the phone, but overall being calm and mature, like a normal human? Think before you judge.
(An actual conversation with one of my peers)
Me: You're not going to get better if you keep doing that.
Other Tween: Doing what?
Me: Well, I'm supposed to be helping you, but you're just copying my answers.
Other Tween: So? That's not gonna stop me from getting into Harvard!
(She gets C's and D's in math to this day.)
by Pudgy Adolescent February 2, 2011
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Okay, to start, there is a huge difference between preteen and tween.
Preteen: Someone between the ages of 9 and 13
Tween: A little girl, who thinks that she's an teenager because she's wearing a training bra, and she continues to act like a child.

When their favorite Disney channel stars, like Miley, start taking pictures in bikinis {which is what every other teenage girl has done,} they become "slutty." Then, they move on to a new "role model." Their newest role model is Selena Gomez, but she'll "screw up" eventually, and they'll find another "role model" Disney markets to them.

These girls want to shop at either:
Abercrombie: Because it's "hip."
or
Hot Topic: Because it's totally "emo punk"

These girls strive to be cool, and will latch on to the latest trend.
They also have myspaces, with a bunch of fake pictures they stole from photobucket.
Basically a marketing audience for companies like Disney.
Britney, a tween, told mom that she hated Hannah Montana now, because she's become trampy. Her new "awesome" role model is Selena Gomez, because she's cute and innocent. Next week she told mom that she still liked Selena, but Gerard Way from MCR is totally "emo punk," and she wants to go to hot topic to buy their merchandise, so she'll be "emo punk" too!
by greenpeas August 19, 2009
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A creature that is said to be between the ages of 9 and 12, who for some reason, have immense 'confidence' in themselves.

Spend most on the time on the internets and flipping their hair.

Tends to be in love with stupid pop bands such as The Jonas Brothers and other Disney crap.

Will defend said band with bad grammar, and meaningless insults.

Ex:
omj. Jonazz bruders RAWK, OK??? ur just jelouse bcuz u wishes u wer dem, ok? u probbably r fats n uglys n poor. u wish u waz rich, u meanie. ur so mean. go to AYCH EE DOUBLE HOCKEYYSHTICKS. YEH.

Tends to shop at stores like Hollister and American Eagle, because apparently that's the style nowadays.

Dresses rather whorish, and stuffs toilet paper in their training bras.

Have no individuality, and will do whatever the media says is 'rad'.
Me: Why are you holding your breath?

Tween: Disney says breathing isn't cool.
by uberdork August 22, 2008
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Someone between the ages 9-12. Too old to be a child and too young to be a Teenager. Even though they are little kids, they dress like a whore. They follow any trends and are obsessed with Disney bullshit. They have Facebook accounts, but they lie about their age saying they are 18 years old because they are not even 13 yet. These creatures can be found in grades 3-7. They are easy to spot on +13 websites. It's insulting to call a mature person between the ages 9-12 a Tween. Call them a preteen instead.
Tween number 1: LyKe OmG!!! R U GoInG 2 JaNeS 12Th?!!!!!11!!

Tween number 2: O yAh I Am. ImMa WeAr mUh ShOrTeSs SkIrT BeCuZz dAt HoT gUy In 7Th AsKeD mE oUt!!!!!!!! He ToLd MuH oVaR FB LYKe Omfg!!!!!!!1!!!

Teenager: Oh stop trying too hard to grow up! You are a Child! You supposed to watch Cartoons and Play outside.
by Pre-teen May 6, 2014
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A made-up age group, ranging from about 8 to early teens, used by parents to justify why they are allowing their prepubescent daughters to dress and behave like sluts.
*: "Why is your nine-year-old wearing a midriff top, low-rise jeans, and eight pounds of eyeshadow and lipstick?"

Girl's mother: (taking a long drink of boxed wine and shrugging) "Why not? She's a tween!"

*: "She also has a tramp stamp."

Girl's mother: "I believe I just said she was a tween."

*: "I think she's sexting a college student."

Girl's mother: "TWEEN!"
by wolf15668 September 1, 2013
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