Definition of own affair in English:

own affair

noun

historical
  • (in South Africa) a matter defined as being specific to a particular ethnic group, and controlled by that group through a chamber of the tricameral parliament.

    • ‘If the State President decides that a given matter is an ‘own affair’ of a particular House, he will refer it to that House for final legislative determination.’
    • ‘Since welfare became an ‘own affair’ in the tricameral parliament, the House of Delegates has trebled its number of professional social work staff.’