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 word whose definition can never be agreed upon from one person to the next, so as a result is rendered meaningless.
Look up tween at urbandictionary and all the definitions will be different
by Meus Nex October 18, 2009
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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 Jett April 16, 2010
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8-13-year old's who are usually girls who try desprately to be a teenager but are still children. A product of celebrity influences. To qualify as a tween you must follow the four W's:

Watch the Disney Channel religiously.
Wear: as much makeup as your mother will allow you to and cake it on sloppily to try to look like you're a teenager; stuffed training bras.
Worship celebrities like Jesse Mcartney, Miley Cyrus, Hilary Duff, etc.
Worry that people will think you're NOT a teenager because as we all know the number one rule of tweendom is to ALWAYS try desperately to act like a teenager even though you're ages 8-13.
"I'm such a tween! I watch Hannah Montana! That makes me cool!"

"OMG, my mom JUST gave me permission to wear eyeshadow!!! Wanna go buy some lipgloss and eyeshadow, since that's the only makeup I'm allowed to wear?"

"OMG I soooo totally LUVED Hannah Montana's outfit on last week's episode! I just wish my mom would let me wear halter tops!! STUPID BOOBS! WHY WON'T THEY GROW?! MUST GO STUFF TRAINING BRA WITH TOILET PAPER!!!"

"OHHHH, JESSE MCNARTNEY IS SO HOT! He should sooo totally date Hannah Montana!"

"OMG, I so totally ran out of eyeshadow!!! Do you think that if I don't wear any this weekend people will actually realize I'm eleven, not thirteen?! OHMYGOSH, must go buy more!! GASP! IS THAT A ZIT?! YAYYY--oops. I mean, ummm, NOOOO! NOW CALEB WON'T ASK ME TO THE CLASS CHRISTMAS PARTY!!"
by smartass_101 August 15, 2009
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Most people expect these 10 to 12 year old girls to be prissy and annoying.... well at some times they can be (especially at 10) but they seem to be growing out of toys and getting more into boys! (oooh! that rhymed!)
person 1: Ah, yeah see that kid over there?
person 2: you mean that tween?!
by snapcraclepop January 27, 2013
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