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A vagina that is very loose and is equally as disgusting. In fact a sloppy muff is so bad it may resemble a bag of mince meat that has been punched multiple times and then been deficated upon by a pack of wild horses.
Dude, do you remember that girl I went home with yesterday night? She had the worst sloppy muff.
by immaslapahoe December 28, 2016
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