will not hear of
will not hear of {v. phr.}
Will not allow or consider, refuse attention to or permission for.
I want to go to the show tonight, but I know my mother will not hear of it.
Mary needs another day to finish her book report, but the teacher won't hear of any delay.
John's father told him he would not hear of his having a car.
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Source: A Dictionary of American Idioms
