A sexual act performed while driving on the highway. While getting Roadhead or Roadmuff, the driver of the vehicle tells his/her partner to open their door and spit. As the passenger leans over to the door, the driver slows down considerably and kicks them out of the car and speeds away.
Franklin: Yo, My gf was givin me roadhead, so I gave her the Detroit Bailout in return.
by Jizzle-D April 18, 2010