From Longman Dictionary of Contemporary Englisha good few/manya good few/manyLOT/LARGE NUMBER OR AMOUNTa fairly large number of things or people I’ve done this a good few times now. A good many people were upset about the new tax. → good
Examples from the Corpus
a good few/many• In time she came to know a good many faces, but none of them were people.• She solved some problems, but she created a good few more-many of which Britain is still dealing with today.• We shared this house all the years of my childhood, and a good many summers afterward.• It was no accident that a good many towns were sited on the borderline between arable farming and pastoral regions.• It is likely that a good many valuable stones were destroyed in this way because Pliny was muddling up hardness and toughness.• There are a good many variables that may intervene in just this manner.• Overall, it took a good many years for the primaries to wrest control from the bosses.• It had been a good few years. 