A piece of worthless, meaningless plastic, usually with ones picture and some personal information. If you have one, it means you spend time @ the DMV like a fucking idiot taking tests and what not. If you dont it means you r a mexican or another minortity (not white trash) and dont feel that it is neccesary and wont get cought without one.
Adrian: I got pulled over again, and I still dont have a license.
Andy: Y the cops always tryn' to catch you ridin' dirty?
Adrian: Cause' of the color of my skin.