Any mode of transportation other than a personal automobile that a person is forced to utilize after losing their driving privileges/automobile as a result of one or many DUI/DWI convictions. Most commonly a bicycle but may also take the form of a skateboard, rollerblades, or someone waiting at a bus stop in a nice suit.
The 40 year old marketing executive claimed that he started biking to work for health reasons but the whole office knew it was a DUI bike.
by Basspilot April 3, 2008