Darieners, or people from the rich, preppy town of Darien,as they are called from their peers from the rival town of New Canaan. this word is used to describe these douschebags from darien, hence D-baggers. D-baggers are mostly characterized as being rich, alcoholic/junkies, and attempting to be ghetto.
Dude, did you see that d-bagger over there in his blue and white basketball shorts?
Yeah i know, what wanna-be.