2. (verb) to stagger, totter, reel.
E toru ngā wehikē, kua kōkeke haere a koroua (PK 2008:288). / Three whiskies and the old man is staggering about.
3. (noun) piston.
Ka piki te kōkeke, ā, ka kurutētia te ranunga o te hau takiwā me te kōhinu (RP 2009:337). / The piston ascends and the mixture of air and petrol are compressed.