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A fudge muscle is your sphincter, it's the muscle you use to shit, there are two actually, an internal anal sphincter, and an external anal sphincter but it's not like any of us are fucking doctors so who cares.
N.Crooks : Oh my god be careful stud you're gonna blow out my fudge muscle if you keep fucking me like that.

Bob: What did I tell you slut, you use clinical terminology in my presence, now I wanna hear you say, please bob, resize my internal anal sphincter, and abuse my external anal sphincter!
by JoBOOOO November 22, 2006
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