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1. A person who rides a medium sized fixed gear cycle that forms the look of a bmx bike with suspension, they are considered to be the most badass style of rider and they get the most pussy

2. A style of bicycle that is used to participate in dirt cycling and tricking
My boyfriend is a dirtjumper and I want his cock all the time.

I am trying to get my girlfriend to buy a dirt jumper but they are very expensive
by AirMtb April 09, 2015
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