A fictional, vestigial Orifice hidden deep in the anal cavity. Seldom cleaned and commonly burdened with excessive waste material, it is generally understood to be an undesirable hole.

The Jucuntius orifice is located several inches deep into the anal cavity and is 2 inches deep x 1 inch wide.
Oh! I'm an A-hole, well you're a J-hole!

The J-hole (The Jucuntius Orifice) is worse than the anus.
by Gester Ghost September 22, 2010
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