1
general::
Phrase(s): turn a deaf ear (to someone or something)
to ignore what someone says; to ignore a cry for help. • How can you just turn a deaf ear to their cries for food and shelter? • Jack turned a deaf ear to our pleading.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Refuse to listen, as in You can plead all day but he's turning a deaf ear to everyone. This expression dates from the first half of the 1400s and was in most proverb collections from 1546 on. Also see FALL ON DEAF EARS.
American Heritage Idioms