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1) the inside of your ass or the chute of the anus.
2) the area of the anus that extends from the colon to the exit of the rectum.
Tim came up to me and told me he broke his ana-pipe when he bounced his ass off a rock when we went tubing

"Ah fuck! I just broke my ana-pipe because I fell off the fucking ladder!"
by Ass gravy April 11, 2015
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