An 'adjective' in a sentence. 'He shouted himself hoarse.' 'Hoarse' is an adjective, meaning 'sounding rough and unpleasant, especially because of a sore throad'. Then in some sentences like 'He screamed/shouted himeself hoarse'. It's not understandable to me. If it says 'He made himeself hoarse', then I know, as we can put an adjective in 'make sb/sth adj'. Here I can't make it. Can you help explain the use of 'hoarse'? Thanks in advance.Can it be seen as a set phrase? Or Because 'to become hoarse' is a following state of 'to shout', then 'hoarse' rather than 'hoarsely' is understandable.