Green’s Dictionary of Slang

waka n.

[M?ori waka = 'canoe'.]

(N.Z. prison) an activity, an object, an interest.

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[NZ]D. Looser Boobslang [U. Canterbury D.Phil. thesis] 200/1: waka n. can I row your waka? or can I steer your waka? or am I on your waka today? ‘Can I take part in your activity?’ ‘Can I share whatever you’ve got?’ (e.g. drugs, cigarettes, food, pornographic magazines, etc).

In phrases

waka up (v.)

(N.Z. prison) to transfer to another prison.

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[NZ]D. Looser Boobslang [U. Canterbury D.Phil. thesis] 200/1: waka up v. to transfer to another prison.