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" January 29, 2016 6:37 pm at 6:37 pm #1134856 HashemisreadingParticipant it aint over until Rebyidd has the last word.