Definition of munga in English:

munga

Pronunciation /ˈmʌŋɡə/ /ˈmʌndʒə/

noun

slang, military slang Australian, New Zealand
  • Food; a meal.

Origin

Early 20th century; earliest use found in Arthur Thomas Quiller-Couch (1863–1944), writer and anthologist. Probably shortened from mungaree.