
Be deaf in one ear (and selective in the other)
Fall on deaf ears / Turn a deaf ear

Non sentirci da quell'orecchio 
Fall on deaf ears / Turn a deaf ear

Non sentirci da quell'orecchio 
Meanings
To be deaf to all arguments on a given subjects
Examples






Origin
This expression is often used ironically, since probably the recipient is not deaf; he/she simply chooses to act that way