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A belt designed to cover the anal cavity of both men and women with lock and key to keep would be anal-ists from entering.

Also sometimes used to prevent one from getting their head in their own anus.
"Gee golly willickers Wally, I would let you stick it in my pooper, but Dad's making me wear the asstity belt and he has the key."

by mardonna April 08, 2009
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