one-tuatara
1. (noun) stiff brown soil.
Ko te one-tuatara kore rawa nei e pīrangitia, he nui nō te mahi ki te patupatu; tētahi mahi he pīkau i te kirikiri mō te one-tuatara (MA 1925:157). / Stiff brown soil is never liked because there is so much work required in pulverising it; another task is carrying gravel for this stiff brown soil.