N: A child, usually between the ages of 9 and 15, who seeks to imitate all that is celeb or fashionable while at the same time reflecting the society of their local high school. Usually female.
The seniors laughed when they saw the gaggle of tweeny bopper girls, all wearing identical short pleated skirts at the football game and complaining about how cold it was.
by Shidoni March 8, 2009
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Noun

Slang term for the female vagina.
“I wouldn’t mind seeing her tweenie lips!” JK
by Bigguystud! January 4, 2018
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Someone with a abnormally small and deformed penis due to extreme amounts of masturbation.
Patrick was nicknamed the tweeny tinker after an emabrassing games lesson when he ran around naked. 2 inches and the shape of a hammer the tween winker Patrick never got any action.
by Tinky Winky Patrick April 23, 2009
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When tween stars such as Justin Bieber instill within you a range of emotions based on jealousy, caused by a misplaced and egotistical belief on your part that it should be you that is being adored, even though in most cases you are 30+ years old, unattractive, and have no discernible talent of your own.
(40 year old woman on the telephone)- "Did you see that Rebecca Black video? I want HER life...I got some bad tweenis envy!"
by JayszunVanderwerff July 24, 2011
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Being unique to the personality of Tweeny, a red teenage betta fish who's bloodstream consists of only energy drinks. He's very kind, funny, socially awkward and short, so if you are called Tweenyful, I'd take it as a compliment.
Bryan: "Yo man, you're acting very Tweenyful today." Adam: "I totally don't take offense to this statement and I thank you.
by Espezz August 11, 2018
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