A word utilized to describe someone who exibits the behavioral patterns of a child. Such people tend to be impulsive; an example of which, is a tendency to use unwanted physical contact on another person, or making statements in complete ignorace and crudeness. Immature people also tend to make narrow associations of certain actions with certain effects, such as the association of biking with falling off.
by Anonymous October 21, 2003
One who abuses drugs to feel grown up.
One who abuses alcohol to feel grown up.
One who calls people immature.
One who abuses alcohol to feel grown up.
One who calls people immature.
by a-nonny-moosee October 15, 2008
by Zoeslut October 07, 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