From Longman Dictionary of Contemporary Englishgo overboardgo overboardTOO/TOO MUCHto do or say something that is too extreme for a particular situation I hope politicians will not go overboard in trying to control the press. → overboard
Examples from the Corpus
go overboard• Then more cans of the gas, so carefully loaded the day before, went overboard.• They were to stay on the alert for any soldier unlucky enough to go overboard.• You are demonstrating to them how to recognize, name and communicate their feelings without going overboard.• It was feared he'd gone overboard and air and sea search was launched.• Don't you think you went a little overboard on the decorations?• My problem is, I have a tendency to go overboard with compliments.• Although Levin sometimes goes overboard with jokes, his breezy, slightly irreverent tone is a welcome one.• I decided to go overboard with processors and connected three digital multi-effects units and a mono delay. 