woman/lady/girl of easy virtue
From Longman Dictionary of Contemporary Englishwoman/lady/girl of easy virtuewoman/lady/girl of easy virtueold-fashionedSY a woman who has sex with a lot of men → easyExamples from the Corpuswoman/lady/girl of easy virtue• Sadly, morals and behaviour ashore had deteriorated too with more drunks and ladies of easy virtue in evidence.