A nasty ass chick, who doesnt bathe, has greasy hair, dirty clothes, looks like her makeup has been on for 5 days and she just reapplies, who is always tryin to pick up a new dude cause noone will go home with her.
"You see that dirtbike tryna to get my number?"

"What the hell is Leroy doin fucking with them dirtbikes?"

by coochie sniffer April 16, 2007
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A phrase used to describe the kind of people who ride trucks and dirtbikes. They also drink beast, go to vo tech, and like to sport the white trash 'stache.
I saw that kid Kenny from vo tech today. With his Metallica t-shirt and white trash 'stache, he's looking totally trucks and dirtbikes.
by TheConcierge April 14, 2005
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A supermini is a stock 84cc mini (usually one of the five major dirtbike brands) with a modified cylinder of 100, 103, 105, 109, or 112cc's. These dirtbikes also have a 16" rear wheel and a 19" front wheel as opposed to the normal 14" and 17" wheels on a stock 85cc bike. These bike's ate the perfect transition bike from a mini to a full sized bike. Often, a skilled rider on a supermini can catch and pass an adult on a full sized bike.
"dude did you watch number 111 on the Yamaha supermini dirtbike?"

"ya, he was doin the 90 foot triple jump that most of big bikes won't even do!"
by mxmann111 June 29, 2013
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A sex position where a man, lying on his back, grabs a woman by the pigtails and presses her face against his asshole and lets loose his bowels.
Sloppy Dirtbike
by mattyferocious April 7, 2010
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When you shit on a girl's chest, and then paddle it like a dog digging, while making motor noises with your mouth.
"Ah shit man! that girl is sooooo dirty I bet she'd even let you pull a detroit dirtbike in her bedroom!"
by Smeeeth April 25, 2007
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Used in expressing extreme joy or happiness; satisfaction.

Originated from expressing hysterical joy, and using the term radical to describe dirtbikes. The phrase "radical dirtbikes" eventually grew to mean feeling extreme joy over anything.
by Prof. Wetwang August 4, 2004
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The dirtbike dyke is defined as the nasty lesbian JAMIE JONES
the dirtbike dyke licks jessica whiteds pussy
by cock_blocker101 June 25, 2008
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