wheelie definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a stunt performed on a motorcycle or bicycle, in which the front wheel is raised so that the vehicle is balanced for a moment on its rear wheel
wheelie definition by American Heritage Dictionary
A stunt in which the front wheel or wheels of a vehicle, such as a bicycle or motorcycle, are raised so that the vehicle is balanced momentarily on its rear wheel or wheels.
Origin: wheel + -ie.