1 definition by fortysixandtwo

Stands for "Douche in a Buick", but refers to anyone driving 5-15 mph UNDER the posted speed limit. However, studies show that 99.9% of the time these idiots are in a Buick.
Lady: "Are you almost home?"
Dudeman: "Well, its down to one-lane and this guy in front of me sucks at life.. wait... it's a LaSabre.. I knew it, fuckin' DiB."
Lady: "Guess I'll see you when I see you."
by fortysixandtwo March 10, 2007
Get the DiB mug.