to beat soundly in punishment; flog.

to defeat thoroughly

The home team thrashed the visitors.

Nautical . to force (a close-hauled sailing ship under heavy canvas) against a strong wind or sea.

thresh.

to toss, or plunge about.

Nautical . to make way against the wind, tide, etc.; beat.

thresh.

an act or instance of thrashing; beating; blow.

thresh.

Swimming . the upward and downward movement of the legs, as in the crawl.

British Slang . a party, usually with drinks. ?

thrash out or over, to talk over thoroughly and vigorously in order to reach a decision, conclusion, or understanding; discuss exhaustively.

verb

thrash