* Literal: The fish was thrashing wildly on the deck of the boat after being caught.
* Figurative: The storm was thrashing the coastline, with waves crashing against the cliffs.
* Informal: The band was thrashing out a heavy metal song, their instruments echoing through the venue.
* Idiom: He was thrashing around in bed, unable to sleep because of the pain.
* Descriptive: The dog was thrashing its tail excitedly, eager to go for a walk.
As you can see, "thrashing" can be used in different contexts, depending on the meaning you want to convey.