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1.
A previously shaved or waxed vagina that is now unkept and neglected.
Brian: Hey, Kristen, remember that one Vivendi party where you got drunk and showed everyone your Carl?

Kristen: If I was getting more sex, I probably would have done something about my 5 o'clock Carl. But the Ducks haven't lost a game yet so I am growing out my bearded Carl in hopes they'll win the Stanley Cup!
by Harold Clampet November 11, 2010