not be able to do something to save your lifeidiomPart ofsavenot be able to do something to save your lifenot be able to do something to save your life — idiomidiom1. Used to say that someone is extremely bad at doing something.1.idiomDefinitionUsed to say that someone is extremely bad at doing something.ExampleMia can't cook a simple meal to save her life.Why did you ask Tom to fix the sink? He can't use a wrench to save his life.