deaf ear

When your friend pretends not to hear you and starts talking to someone else, even though they can totally hear you.

Duda is totally giving us deaf ear.

by nlm0131 December 6, 2017

turn a deaf ear

Refuse to hear or listen to something or somebody on purpose.

When you really try to get people to listen and they don't, they obviously want to turn a deaf ear.

by Mr. Terrence L. Trezvant April 19, 2005