1 definition by Hew Janus

Top Definition
1) The area around the anus where the skin is darker in color than the rest of the body. The mudring if often bleaced by porn stars to make it look nonexistent and thus make the asshole look more enticing.

2) The area around the balloon knot.
My brother has the biggest, dirtiest mudring I've ever seen.
by Hew Janus December 22, 2006
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