From Longman Dictionary of Contemporary English(jolly) good show(jolly) good showBritish English old-fashioned used to say that you approve of something someone has done → good
Examples from the Corpus
(jolly) good show• Although his forecasts have been close in the past, this is his best showing.• And he may have acquired an added incentive for wanting to make a good showing.• The royals will try to shrug off their problems and put on a good show for Margaret.• Just how good shows in the figures.• It's the best show they've got.(jolly) good show(jolly) good showBritish English old-fashioned spokenAPPROVE used to express your approval of something → showExamples from the Corpus
(jolly) good show• And he may have acquired an added incentive for wanting to make a good showing.• The royals will try to shrug off their problems and put on a good show for Margaret.• Although his forecasts have been close in the past, this is his best showing.• Just how good shows in the figures.• It's the best show they've got. 