verb \ˈthrash\

: to hit (someone or something) very hard with a stick, whip, etc.

: to defeat (someone or something) very easily or completely

: to move about violently

Full Definition of THRASH

transitive verb
:  to separate the seeds of from the husks and straw by beating :  thresh 1
a :  to beat soundly with or as if with a stick or whip :  flog
b :  to defeat decisively or severely <thrashed the visiting team>
:  to swing, beat, or strike in the manner of a rapidly moving flail <thrashing his arms>
a :  to go over again and again <thrash the matter over inconclusively>
b :  to hammer out :  forge <thrash out a plan>
intransitive verb
:  thresh 1
:  to deal blows or strokes like one using a flail or whip
:  to move or stir about violently :  toss about <thrash in bed with a fever>

Examples of THRASH

  1. He thrashed me with his belt.
  2. The team thrashed them last week.
  3. Something was thrashing wildly in the water.
  4. She thrashed around in her sleep.

Origin of THRASH

alteration of thresh
First Known Use: 1568

Synonym Discussion of THRASH

swing, wave, flourish, brandish, thrash mean to wield or cause to move to and fro or up and down. swing implies regular or uniform movement <swing the rope back and forth>. wave usually implies smooth or continuous motion <waving the flag>. flourish suggests vigorous, ostentatious, graceful movement <flourished the winning lottery ticket>. brandish implies threatening or menacing motion <brandishing a knife>. thrash suggests vigorous, abrupt, violent movement <an infant thrashing his arms about>.

swing, sway, oscillate, vibrate, fluctuate, waver, undulate mean to move from one direction to its opposite. swing implies a movement of something attached at one end or one side <the door suddenly swung open>. sway implies a slow swinging or teetering movement <trees swaying in the breeze>. oscillate stresses a usually regular alternation of direction <an oscillating fan>. vibrate suggests the rapid oscillation of an elastic body under stress or impact <the vibrating strings of a piano>. fluctuate suggests constant irregular changes of level, intensity, or value <fluctuating interest rates>. waver stresses irregular motion suggestive of reeling or tottering <the exhausted runner wavered before collapsing>. undulate suggests a gentle wavelike motion <an undulating sea of grass>.



: a type of rock music that is very fast and loud

: a violent movement

: a party with loud music and dancing

Full Definition of THRASH

:  an act of thrashing
:  rock music (as heavy metal or punk rock) that is extremely fast and loud

Examples of THRASH

  1. The shark swam away with a thrash of its tail.

First Known Use of THRASH

THRASHES Defined for Kids


verb \ˈthrash\

Definition of THRASH for Kids

:  to beat very hard
:  to move about violently <Something was thrashing wildly in the brush.>
:  thresh 1


Next Word in the Dictionary: thrasher (noun)Previous Word in the Dictionary: thrappleAll Words Near: thrash
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears