Reply To: Replacement idiom for "when the fat lady sings" Home › Forums › Humor & Entertainment › Replacement idiom for "when the fat lady sings" › Reply To: Replacement idiom for "when the fat lady sings" July 27, 2015 12:45 pm at 12:45 pm #1134838 goofusParticipant It aint over till the mourners say kaddish.