thrasher

(noun) a farm machine for separating seeds or grain from the husks and straw. Synonyms: thresher, threshing machine.

(noun) thrush-like American songbird able to mimic other birdsongs. Synonyms: mocking thrush.

(noun) large pelagic shark of warm seas with a whiplike tail used to round up small fish on which to feed. Synonyms: thresher, thresher shark, fox shark, Alopius vulpinus.