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A word descrbing a Young Girl trying to grow up way to fast.
Matt: Dude, jen just fucked that 18 year old guy. Shes 14!

Dan: yeah dude, talk about jruns.
by boynoy March 28, 2010
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Aug 7 Word of the Day
A celebrity free pass is an agreement between you and your significant other that if you meet said celebrity and there is an opportunity to sleep with them, your partner cannot get mad at you for doing so because you had agreed before hand that this person was your celebrity free pass. It is ideal if both of you in the relationship choose a celebrity free pass so that the playing field is even.
Julia met Drake at a bar, and hooked up with him, knowing that her significant other could not be mad at her, because Drake was her celebrity free pass.
by gingerale011 March 25, 2011
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Exact source unknown, popular use dates to late 2004 on AnandTech forums, referring to an error often recieved when browsing or searching the forums. Sometimes used in conjunction with OMGWTF as OMGWTFJRUN
Server Error

The server encountered an internal error and was unable to complete your request

JRun closed connection.
by Velcro Warrior August 04, 2004
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