1. (

• thrash ,
• thresh ,
• lam ,
• flail

) give a thrashing to; beat hard ;

2. (

• convulse ,
• thresh ,
• thresh_about ,
• thrash ,
• thrash_about ,
• slash ,
• toss ,
• jactitate

) move or stir about violently; "The feverish patient thrashed around in his bed" ;

3. (

• slam_dance ,
• slam ,
• mosh ,
• thrash

) dance the slam dance ;

4. (

• thrash ,

) beat so fast that (the heart's) output starts dropping until (it) does not manage to pump out blood at all ;

5. (

• thrash ,

) move data into and out of core rather than performing useful computation; "The system is thrashing again!" ;

6. (

• thrash ,
• thresh ,

) beat the seeds out of a grain ;

7. (

• cream ,
• bat ,
• clobber ,
• drub ,
• thrash ,
• lick ,

) beat thoroughly and conclusively in a competition or fight; "We licked the other team on Sunday!" ;