A cylindrical device made out of a relatively soft though strong substance, usually surgical-grade plastic, worn in the anus, typically by a male homosexual whose rectum has sustained a large amount of wear & tear due to overuse.

See also: penis sleeve
"They say a pussy can stretch a mile but it won't crack an inch. Not so the asshole. Rock Hudson had to wear an anal sleeve for many years before his death."

-- Boze Hadleigh, 'Hollywood Babble On'
by Tummy AuGratin February 26, 2006
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