Top Definition
A group of people, usually women, who get drunk on red wine as a group. The Purpletooth Posse forms at nearly any social occasion where wine is served. Especially popular are "Girls dinners" and "Book Clubs". Can be recognised by glowing purple teeth fluttering eyes and slurred speech.
I got home last night and the purpletooth posse was in full effect. I think each of them drank two bottles and not one was making any sense. I just went out to the garage and ignored them.
by majoricehole February 21, 2011

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