1 definition by Tony3559

Top Definition
Double D, also known as DD is the Designated Driver, or person who can't drink because he has to drive their shit-faced friends home. Often times the Double D shift is rotated amongst a group of friends or a group of friends finds a person desperate for friendship to be the double d.
"Want a beer?"
"Nah man I can't, I'm playing Double D tonight."
by Tony3559 April 02, 2008

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