Definition of tommy rough in English:

tommy rough

noun

  • 1Australian the Australian herring, Arripis georgianus (family Arripidae), a small, edible, rough-scaled fish found in coastal waters of southern Australia (also called roughy).

  • 2English regional the ruffe, Gymnocephalus cernuus (rare).

Origin

Late 19th century; earliest use found in John Conigrave (b. 1843).