be water off a duck's back

be (like) water off a duck's back

if criticism is water off a duck's back to someone, it has no effect on them at all (often + to ) He's always being told he's lazy and incompetent, but it's just water off a duck's back to him.

Common Names:

Name	Pronounced	Usage
Henny	HEN-nee	Dutch
Digby	DIG-bee	English (Rare)
Antigonus	an-TIG-ə-nəs (English)	Ancient Greek (Latinized)
Hafiz	-	Arabic
Elouan	-	Breton, French
VÄInÄMÖInen	-	Finnish Mythology