Donercycle 

Idiot on a very fast motorcycle making his or her body parts available for donation.

A crotch rocket becomes a donercycle at high uncontrolable high speeds.

Donercycle by mike2545 October 24, 2008

Bonercycle 

The vehicle of retired gay pornstar Billy Herrington. It is composed of a naked body builder whom is being rode by Harrington, also naked. It can work as a segway, a motorcycle, etc.

Term invented by Michael Swaim of Cracked.com

-southern car dealer accent- Are you looking for a brand new or used dude-car? Then come on down to Harrington's, where we just got our brand new shipment of 2011 b-b-b-b-b-b-bonercycles! On a tight budget? Check out our wide range of gently used O rings. And we got all the added features! High beams, low beams, anti-lock balls! MMmm! Check out the paintjob on that! So come on down to Harrington's, where we don't jerk you around! Unless that's your thing, in which case... Mmmmm.... Yeah.... Woooo! THIS COULD BE YOU!

Bonercycle by Merc29 December 11, 2010

dudercycle 

when two dudes ride together on one motorcycle

"harrison's bike broke down so he and andy dudercycled it the rest of the way"

dudercycle by kanoa December 13, 2007

donorcycle 

Any grossly overpowered motorcycle, considered likely to land an inexperienced rider's organs in someone else's body.
(Originally, emergency-room slang for "the motorcycle crashed by the patient now on the table.")

"If you want so see the ultimate in donorcycles, look no further than the Hayabusa."

donorcycle by Jim Demers May 26, 2008

donorcycle 

a motorcycle, when driven poorly

"Call the Trauma Team! Incoming from donorcycle"

donorcycle by dogger November 23, 2002

donorcycle 

nursing slang for a motorcycle

Get the transplant team ready, we have one more donorcycle casualty arriving.

donorcycle by Gandalf February 8, 2003

bonercycle 

The exact definition of bonercycle is unknown, due to debate between the following two definitions:

Definition 1:
An irresistable penis that females want to "ride". Similar to a motorcycle.

Definition 2:
A cycle with steps such as: limp, half-mast, and hard-on. Similar to a life cycle.

"I really wanna ride that hippie's bonercycle"

"My bonercycle is always at stage one, limp :("

bonercycle by GarnetOakley November 7, 2007