ˈɹeɪzɚˌbæk ˈɹeɪzəˌbæk ˈɹɒɹkwəl having a sharp narrow back a razor-backed horse razorback hogs any of several baleen whales of the family Balaenopteridae having longitudinal grooves on the throat and a small pointed dorsal fin a mongrel hog with a thin body and long legs and a ridged back; a wild or semi-wild descendant of improved breeds; found chiefly in the southeastern United States