From Longman Dictionary of Contemporary Englishleave it to somebody (to do something)leave it to somebody (to do something)American English spoken informal used to say that no one should be surprised that someone does something, because it is typical or expected of them Leave it to you to have the whole day planned out! → leave
Examples from the Corpus
leave it to somebody (to do something)• And I will leave it to you, dear reader, to make a choice.• At Thayer the clear intention is that if something is central to our mission, we will not leave it to chance.• But I don't want to leave it to the last game of the season.• He'd not leave it to some one who would turn it over.• I leave it to your discretion whether you should tell the Professors that they are 114 both wrong, or both right.• I find it difficult to put my thoughts and feelings about this into words, so I will leave it to others.• They ought to leave it to the markets.• Yeah, well, leave it to Esther. 