Meaning of throater in English:

throater

Pronunciation /ˈθrəʊtə/

noun

Fishing
  • Chiefly North American. A person who prepares caught fish for gutting by cutting the throat and slitting the belly up to the gills. Also: a knife used for this purpose; = throating knife . Now chiefly historical.

Origin

Mid 19th century (in an earlier sense). From throat + -er.