Top Definition
an old dried up vagina that hasn't been used in quite some time.
Betty white had a dusty muffin.
by kstan34 July 15, 2010
1 more definition
1 Word related to dusty muffin
A older women.
One guy to another, " No way dude! I don't do dusty muffins."
by Sapphire Rcok Jugs May 10, 2010

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