From Longman Dictionary of Contemporary Englishtrouncetrounce /traʊns/ verb [transitive] BEAT/DEFEATto defeat someone completely We were trounced 13–0.► see thesaurus at beat→ See Verb table
Examples from the Corpus
trounce• Nobody seemed to have any doubt that Pencader would trounce his rivals on his debut at Newbury last month.• It's Washington's worst loss since Detroit trounced them 38-6. 