2. (verb) (-na,-tia) to sink (into mud, etc.).
Te taenga atu ki te wāhi repo, tapoko tonu iho, he roa hoki nō te ua i tāpokopoko ai (TH 1/2/1860:3). / When they reached the swampy area, they sank down and became bogged because it had been raining for so long.
Synonyms: tāpokopoko