1. (noun) A motorcycle falling under the class: "sport bike". Traditionally used in motorcycle racing because of their high performance, crotch rockets are instantly recognizable due to the fact that the engine is completely covered by the body of the bike, and the operator looks as though he is "riding a rocket". Visualize a person sitting horizontally on a rocket flying through the air, now imagine that rocket is slowly becoming a motorcycle, but the rider maintains that "rocket riding" position. Now stop using your imagination and you have the visual of a crotch rocket. They're fucking gay. Unless you are using them for racing, you should not be riding one.

Most likely the rider is a complete douchebag who spent too much money on some Japanese piece of shit so he can weave through busy traffic and piss people off. Basically the sole cause of the bad stigma attached to motorcyclists, because of their disproportionally high accident rate and jackass driving habits.
"A Kawasaki Ninja is a crotch rocket."

"Dude I borrowed my buddy's crotch rocket to go to _____________ last week, I went 300 miles in two hours down the interstate. Good thing I didn't hit a rock on the road. Did I mention I cut off at least sixty people and caused three accidents in my wake?"
by dougdougdoug August 17, 2007

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A specific type of motorcycle, typically distinguished by it's aerodynamic 'hunched-over' seating position and high power to weight ratio. Often favoured by stunters, who choose the bikes because they are light and easy to perform tricks (such as wheelies and stoppies) on.

Crotch rockets are not always Japanese motorcycles, Italian companies such as Ducati manufacture quite high-quality crotch rockets as well.

Also known as 'sportbikes'.
The Ducati 999, Suzuki GSXR1000 and Yamaha YZF-R1 are good examples of ~1000cc crotch-rockets.
by Zack S. February 27, 2004

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Motorcycles are broken down into general categories. Off road, Track, Cruisers ( incl. Harley Davidsons, Kawasaki Vulcan, Yamaha Roadstar), Sport Touring (Honda ST1300), Touring (Honda Goldwing) and Sport.(Honda CBR600, Yamaha FZ6) Sport bikes are very fast highly mobile bikes where the rider is low and leaning forward. The bike is generally a cafe race style. A Crotch Rocket is the slang term for Motorcycles of the Sport category. The term is derived from their incredible speed. The previous definition of "Non-Harley's" is patently false. I have a Honda Goldwing and it is definitely not a Crotch rocket.
A crotch rocket passed me on the freeway going about 140 mph.
by Al Collard July 03, 2005

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a motorcycle, designed in such a fashion as to give the rider the sensation of flying like superman, with the ability to accelerate fast enough to rival a rocket, and contain it all in a package small enough to fit in your crotch.
zx9-r, zx10-r, zx12r, yzf-r1, gsxr1000, gsxr1300, cbr1000, cbr1100XX...
by darylict July 22, 2004

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Term used to describe sportbikes., which are street bikes derived from race-bike technology. Often used in a derogatory manner.
I'd rather own a Harley than a crotchrocket.
by Milo May 23, 2003

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sport bike very fast 200+ mph , 0-60 in under 3 seconds , 1/4 mile in ~10 seconds , and gets chicks like nothing
Yo that crotch rocket get hoes !
by sandguy April 04, 2003

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Holy Shit! That Bike is Fucking Awesome Dude!

prolly the one thing closest to a jetfighter that we can legally own and drive on the road!
holy fucking shit, that bike is badass dude i fuckin love it
by Ice June 30, 2004

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fast bike with allot of go go go . . usually rules the streets , drag strip , and the track because of it's high weight / power ratio

jeez a honda civic has 140 hp and a crotch rocket has 140 hp and weighs 10 times less !!!! !! ! ! !! !! ! !
by motorcycleking April 04, 2003

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