Top Definition
Someone who cannot consume alcohol because of a health reason or early commitment the next day, they automatically become the Designated Driver to avoid any debate or drama about the issue.
Mark: It's a damn good thing Charlotte got her appendix taken out on Christmas eve

Lucas: Yeah man having a Default Driver takes all the stress out of new years

Charlotte: I hate you guys
by Shortydingo December 31, 2009
5 Words related to Default Driver

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