 Mames line in French at Macys is "Après moi, le déluge" ("after  me, the flood). This quote is attributed to King Louis XV of France  and represents a philosophy of living for now when disaster looms in  the future. In the movie it relates to purchasing Christmas gifts  C.O.D. so that one doesnt have to worry about paying for them right  away, something that a socialite used to running credit everywhere  would be very used to.