Kaffir (Xhosa) Folk-Lore, by George McCall Theal, [1886], at sacred-texts.com
THE STORY OF LONG SNAKE.
In this story the girls are represented as taking fermented milk to the man. This is not in accordance with ordinary Kaffir usage, which prohibits females from serving out milk. But Long Snake, though a man, has been bewitched and obliged to assume the appearance of a serpent, retaining however the faculties of a human being.
Kaffir women grind, or rather bruise, millet by putting it on a flat stone, before which the worker kneels, and crushing it with a small round stone hold in the hands. When several are working near each other of an evening, they usually lighten their labours by a rude chant. The bruised substance is mixed with water, and formed into small loaves of very insipid bread.