it's not over until the fat lady sings

idiomPart oflady

it's not over until the fat lady sings — idiom

1. used to say that a situation still can change and nobody should assume the resul

1.idiom
Definition

used to say that a situation still can change and nobody should assume the result is final yet

Example

Even after two late goals, Coach Mina said it wasn't over until the fat lady sang.

The election looked finished, but Yusuf reminded everyone that it's not over until the fat lady sings.