In opera, audiences would start to leave in between acts thinking it was over. Many operas supposedly announced the end when a blonde women with long braids and a Viking helmet with horns would sing.
It ain't over 'till the fat lady sings
by ncncsr11 June 8, 2020
It ain't over until the fat lady sings.
by G-Union May 12, 2004
by keru smith November 20, 2013
The coach said "It ain't over till the fat lady sings" In which at first I thought meant the fat bitch at the concession stand until the game was over
by ReconShadow3 November 30, 2021