by Zoeslut October 7, 2008
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
by peedoff December 14, 2004
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 17, 2007
what people call you when your a teenager and your doing something fun for little kids. Usally people say this to make themselves feel older and more mature even though there not.
Sam: Dude wanna go have a mud fight!
Kevin: Your so immature, thats for little kids.
Sam: Fuck you at least I'm not an asshole.
Kevin: Your so immature, thats for little kids.
Sam: Fuck you at least I'm not an asshole.
by a-manster August 4, 2006
In a generic age-irrelevant view of the concept: someone who wouldn't or can't get himself to do what they know is the right thing to do.
Someone who likes someone else but wouldn't act upon it; simply cause they are too immature to do what normal people would do.
by s-bandt November 6, 2011