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Feces which dries and hardens on the hair surrounding the anus. This sometimes forms dreadlock-like clusters which in servere cases can interfere with normal bowel action.
"Your Majesty, the Royal Physician has brought warm water and unguents to soften Your Majesties clag knots" Extract from the "Life of the Prince of Wales"
by Tonybeak September 30, 2005
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