thrasher

noun4

1. •
   Any of several New World passerine songbirds, of the genera Toxostoma, Allenia, Margarops, Oreoscoptes and Ramphocinclus in the family Mimidae, that have a long, downward-curved beak.
2. •
   (informal) A fan of thrash metal music.
3. •
   One who thrashes.
4. •
   A thresher shark.