Definition of macca in English:

macca

(also maca, macka)

Pronunciation /ˈmakə/

noun

Caribbean
  • Any spine, prickle, burr, etc., borne by a plant or animal; such processes collectively. Also: a spiny or prickly plant, specifically the macaw palm, Acrocomia aculeata. Frequently attributive, especially in the names of spiny or prickly varieties of plants and animals.

Origin

Late 19th century. Probably short for macca-fat.