From Longman Dictionary of Contemporary Englishstamping groundstamping groundBritish English, stomping ground American English informal someone’s stamping ground is an area where they are known or have a lot of influence I guess he’ll try to reach his old stomping ground to drum up support. → ground
Examples from the Corpus
stamping ground• A party conference is a natural stamping ground for those who have barely four days in which to make a mark.• This raises the question: where is the natural stamping ground for experienced lawyers with case management skills?• Like Banquo's ghost her figure would be seen haunting her old stamping ground.• It's my guess he is trying to reach his old stamping ground.• But not your place, of course: we're a good four hundred light years from your usual stamping grounds.stamping groundˈstamping ground noun [countable] especially British English → somebody’s stamping groundExamples from the Corpus
stamping ground• A party conference is a natural stamping ground for those who have barely four days in which to make a mark.• This raises the question: where is the natural stamping ground for experienced lawyers with case management skills?• Like Banquo's ghost her figure would be seen haunting her old stamping ground.• It's my guess he is trying to reach his old stamping ground. 