crawfish /ˈkɹɔˌfɪʃ/noun 3verb 2forms 3 noun3 •(US, Southern-US) Any of various freshwater crustaceans: crayfish. •(South-Africa) Any of various marine crustaceans, rock lobster; especially Jasus lalandii, the Cape crawfish. •(slang, offensive) An English-Canadian. Used in some corners of Quebec (including the Gaspé). verb2 •To fish for crawfish.As a matter of fact I had to go off at a moment's notice to arrange our connection at the coast. Fellow owning the bungalow wanted to crawfish. — 1934 •(Southern-US, informal) To backpedal, desert or withdraw (also used with out).I have never been one to flinch or crawfish when faced with an unpleasant task. — 1968 formscrawfished · crawfishing · crawfishes