The phrase was first applied to John Osbourne's groundbreaking play 'Look Back In Anger' which drew attention to the British class divide of the 1950's, and also gave rise to to the term 'angry young men' for writers such as Osbourne, and others who wrote novels and plays set in a domestic setting (hence the label) which usually played out tensions and affects of poverty and oppression.of that post-war period. You could do no better than find a copy of the Alan Bates classic film 'Saturday Night And Sunday Morning' to see what it's all about.