thrash

Meanings

Verb

• To beat mercilessly.
• To defeat utterly.
• To thresh.
• To move about wildly or violently; to flail; to labour.
• To extensively test a software system, giving a program various inputs and observing the behavior and outputs that result.
• In computer architecture, to cause poor performance of a virtual memory (or paging) system.

Noun

• A beat or blow; the sound of beating.
• thrash metal

Origin

• From Middle English thrasshen, a dialectal variant of thresshen, threshen (whence the modern English thresh), from Old English þrescan, from Proto-Germanic *þreskaną, whence also Old High German dreskan, Old Norse þreskja.