papa
1. (noun) buttock, flank.
He whero pūmangu, he tiwha nui kai te rae, he mā kai te matamata o te ihu, e toru waewae mā, he raho-poka, he hōiho āhua nui, he parani rānei kai te papa katau, he mate rānei, kīhai i mārama (TW 14/12/1878:631). / It has a blackish rump, a large patch on the forehead, the tip of the nose is white, it has three white legs and is a gelding. It's quite a large horse and has a brand on the right flank but the problem is that it isn't clear.