It's a
common word in
almost all African langauges (Afrikaans, Xhosa, Tswana, Sotho, Zulu etc.) throughout Southern Africa (South Africa, Namibia, Botswana, Zambia, Zimbabawe, Mozambique, Lesotho & Swaziland) for
anything that you can smoke (Marijuana, tabbacco etc.).
Afrikaans: Jy! Gooi my vinnig 'n
light. Ekke wil 'n bietjie TWAK
rook.
Translated in
English: Can you lend me a lighter, I want to smoke some tabbacco.