ex ‧ co ‧ ri ‧ ate /ɪkˈskɔːrieɪt/ BrE AmE verb [transitive]
[ Date: 1400-1500 ; Language: Late Latin ; Origin: past participle of excoriare , from Latin corium 'skin' ]
formal to express a very bad opinion of a book, play etc:
an excoriating review in ‘The Times’