Top Definition
Acronym for Driving While Fucking Stupid: The term used for someone driving in the fast lane at or under the speed limit with their left turn signal on.
Interstate 95

Passenger: What the hell is wrong with this guy in front of us?

Driver: He must be D.W.F.S. because he's been driving 55 in the fast lane with his left blinker on for the last 1/2 mile.
by propack March 22, 2011

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