A thresher shark.
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.
A fan of thrash metal music.
One who thrashes.
Any of the species of sharks in the genus Alopias, three of which are extant.