v. thrashed, thrash·ing, thrash·es
a. To strike or beat, especially repeatedly with a flail or stick. See Synonyms at beat.
b. To strike violently; batter: winds that thrashed the boat.
2. To swing or strike in a manner suggesting the action of a flail: The alligator thrashed its tail.
3. To defeat soundly or decisively.
4. To thresh (grain).
5. To sail (a boat) against opposing winds or tides.
1. To move wildly or violently: squirrels thrashing about in a cage.
2. To strike or flail.
3. To thresh.
4. To sail against opposing tides or winds.
1. The act or an instance of thrashing: "We sat on, listening to the thrash of night trees" (Roger Angell).
2. Music See speed metal.
thrash about (or around)
To struggle to decide or determine something: advisers thrashing about trying to develop a new policy.
To discuss fully or produce by discussion: thrashed out their differences; thrashed out an agreement.
[Variant of THRESH.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.