1 definition by dimebag40

(n) - an inverted or pronated rectum, damaged by anal sex with an unusually thick dick or dildo.

(n) - an anus or rectum that protrudes like a barnacle from the asscrack, usually from rough anal sex
She told him that she liked it rough, so it wasn't his fault that she got a rusty barnacle.

"You know how huge Bob is - don't let him do anal or you'll end up with a rusty barnacle."
by dimebag40 April 9, 2010
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