fishhook /ˈfɪʃˌhʊk/noun 2verb 2forms 3 noun2 •A barbed hook, usually metal, used for fishing.The two basic types of fishhooks are almost equally represented within the site, with composite fishhooks exhibiting only a slightly higher relative frequency than that of bentwoods. — 1980 •(slang) A jack (type of playing card). verb2 •To impale with a fishhook. •To bend back on itself like a fishhook. formsfishhooked · fishhooking · fishhooks