thrash

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To beat with or as if with a flail, especially as a punishment. See Synonyms at beat.
2. v. To swing or strike in a manner suggesting the action of a flail: The alligator thrashed its tail.
3. v. To defeat utterly; vanquish.
4. v. To thresh.
5. v. To sail (a boat) against opposing winds or tides.
6. v. To move wildly or violently: thrashed about all night.
7. v. To strike or flail.
8. v. To thresh.
9. v. To sail against opposing tides or winds.
10. n. The act or an instance of thrashing.
11. n. Music See speed metal.
12. thrash out To discuss fully.

Century Dictionary and Cyclopedia

1. See thresh.
2. n. A rush.

Wiktionary

1. v. To beat mercilessly.
2. v. To defeat utterly.
3. v. To thresh.
4. v. To move about wildly or violently; to flail.
5. v. software To extensively test a software system, giving a program various inputs and observing the behavior and outputs that result.
6. v. computing In computer architecture, to cause poor performance of a virtual memory (or paging) system.
7. n. A beat or blow; the sound of beating.
8. n. music A particularly aggressive and intense form of heavy metal music with a focus on speed, technical precision, and alternate picking.

GNU Webster's 1913

1. v. To beat out grain from, as straw or husks; to beat the straw or husk of (grain) with a flail; to beat off, as the kernels of grain.
2. v. To beat soundly, as with a stick or whip; to drub.
3. v. To practice thrashing grain or the like; to perform the business of beating grain from straw.
4. v. Hence, to labor; to toil; also, to move violently.

WordNet 3.0

1. v. beat so fast that (the heart's) output starts dropping until (it) does not manage to pump out blood at all
2. v. move data into and out of core rather than performing useful computation
3. v. dance the slam dance
4. v. give a thrashing to; beat hard
5. v. move or stir about violently
6. v. beat thoroughly and conclusively in a competition or fight
7. n. a swimming kick used while treading water
8. v. beat the seeds out of a grain