An idiot. A person who is unable to understand basic concepts and will not be successful in life.
Johnny failed his English test. He's such a dirtbike enthusiast.
by Matt September 9, 2004
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The act of getting fecal matter on your penis during anal sex.
Hey, be sure to use a condom when you PIITB, you don't want to wreck your dirtbike !

I went bare backing last night and wrecked my dirtbike
by IComeFromTheLandDownUnder March 13, 2014
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What was once a council of men only driven to piss eachother off is now a shit show of pansy asses. It now lies abandoned by its creators. Only the weak are left to fend in the depths of the chat waiting for the day that it’s creators shall return. What was once the greatest council of the real ogs is now a land of outcasts.
Who the fuck invited this bitch to the Dirtbike Noises Intensified chat
by Scuba Steve eats children February 28, 2019
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Dirtbike is a real man bike not a slow ass harley Dirtbikes and jump shit fast as shit and cam out run any cop if you have the skill it is a form of freedom that can free you from stress and anxiety and if you have big enough balls get a kx 500 or cr 500 they are the most badass bikes ever made but my point is Dirtbikes make you a badass person
Omg look he has a dirtbike he's such a badass
by Eric_dat_Mf February 1, 2022
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Uncle Ronnies Dirtbike, Can be bought on offical ronnie mac 9s store.
The 69er Dirtbike is a high powered mountain bike motorized and used by a dare devil "uncle ronnie'
by a wierdo with no friends :[ October 7, 2020
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A lame but obvious excuse to get out of admitting you were masterbating
Where were you bro? Nowhere bro, I was just playing Dirtbike games
by Austin Wayne April 6, 2018
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