I agree with this definition:

98% of the people on Urban Dictionary
"i looked up the definition of wank! ha ha ha!"

ha ha very (not) funny
by peedoff December 14, 2004

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What many high school students are. Nuff said.
Just because you're in high school doesn't mean people cannot be immature. Maturity is nothing but a mere joke.
by StraightFMan April 10, 2006

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1.) 99% of high school chicks who laugh hysterically at things that are not remotely funny 2.) 90% of college chicks who soak themselves up with drama and send 4 different text messages to their boyfriends, all of which say the same thing
Amy just laughed hysterically cuz she accidentally ran over her crushes mailbox, that is so immature.
by krh90 September 27, 2009

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Term used to describe all the teenagers, "frat boy types", posers, thugs, and other assorted obnoxious entities who post all the inane, stupid, sexually graphic definitions for actual and made-up words on Urban Dictionary.
Most of you immature little fucktards will never attend college or achieve anything worthwhile in life, on account of your ability to reason and communicate like 12 year olds.
by Anonymous Hater of Stupidity August 16, 2007

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Always seems to be referring to men because they did something stupid-(not smart) having nothing to do with maturity. It is manly use by women referring to there husbands.
"You are so damn immature."
or "He is the most immature person I've ever met."
by American Redneck October 24, 2005

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One who abuses drugs to feel grown up.
One who abuses alcohol to feel grown up.
One who calls people immature.
The majority of the teenage population.(immature)
by a-nonny-moosee October 15, 2008

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-People who insult everyone who has a different opinion than theirs, usually with a personal, racial, or gay slur.
-People who become alcoholics and/or do drugs just because “it’s cool.”
-People who tend to be impulsive; an example of which, is a tendency to use unwanted physical contact on another person, or making statements in complete ignorance.
-People who act like a bitch because someone doesn’t want to do something for them.
-People who only ever need you to use you.
-People who behave like hypocrites too often.
-People who constantly bitch about their life when they have it better than who they are bitching to, or for attention.
-People who talk shit because they’re insecure about themselves, then get upset when the person finds out.
-People who offensively use words that are not interchangeable because they are too ignorant to educate themselves.
Your little brother may be immature
by therealdeal,itsbacon October 09, 2011

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