thrasher
nounEtymology Originally a variant of thresher; equivalent to thrash + -er.
1
One who thrashes.
2
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.
3
A thresher shark.
4
Informal A fan of thrash metal music.