From Longman Dictionary of Contemporary Englishsweated labourˌsweated ˈlabour British English, sweated labor American English noun [uncountable] 1 BEChard work done for very low wages, especially in a factory2 BECthe people who do this work
Examples from the Corpus
sweated labour• As a matter of fact, most of the London publishers send their printing to Edinburgh to get it done at half cost by sweated labour.• Daily it devours whole forests and countless hours of sweated labour.From Longman Business Dictionarysweated labourˌsweated ˈlabour British English, sweat labor American English disapproving people who work very hard for very low pay, or the work they doWorking from home is no longer associated with sweated labour. → labour 