1 definition by milfs at the gym

Top Definition
A milf who used to be hot but has become too old and loses her milfness, past her date with which she can still be a milf
Guy 1: Hey check out the milf down the aisle, I really want to get with her

Guy 2: Hate to break it to you but shes past her Milf-by-date
by milfs at the gym October 11, 2010

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