1 definition by unit12p

This phrase comes from the old myth that if you got bit by a dog, and took a clump of that dog's hair and rubbed it on the wound, it would kill all the bactiria in the cut and help it heal faster. Modernly, this term is referred to as having such a hangover, you drink whatever you drank last night to help get rid off it.
Person 1: Dude, I got so drunk last night that I woke up with a ultra-hangover.
Person 2: Did you try using the hair of the dog?
Person 1: Yea, and I think I found the secret to eternal drunk.
Person 2: Nice.
by unit12p November 8, 2009
Get the Hair of the Dog mug.