Question

like water off a duck’s back People are warned of the dangers of smoking but it’s like water off a duck’s back.

Accepted Answer

Criticism, comments or warnings that have no effect on somebody are referred to as being like water off a duck’s back.

Phrase/Idiom	like water off a duck’s back
Definition	Criticism, comments or warnings that have no effect on somebody are referred to as being like water off a duck’s back.
Example	People are warned of the dangers of smoking but it’s like water off a duck’s back.

Water Duck’s Back Criticism Comments Warnings Effect Referred