(countable) A beat or blow; the sound of beating.

(music, uncountable) thrash metal

To beat mercilessly.

To defeat utterly.

To thresh.

To move about wildly or violently; to flail; to labour.

(software) To extensively test a software system, giving a program various inputs and observing the behavior and outputs that result.

(computing) In computer architecture, to cause or undergo poor performance of a virtual memory (or paging) system.