River Mumma

Proper noun

 * 1)  A mythical figure in Jamaican folklore, said to protect bodies of water and the people who pay her tribute. River Mumma is an African retention in the vein of protective water spirits like Mami Wata or the Orisha Yemoja. When it comes to crossing a river she inhabits, she allows those with good intentions to cross her waters; the others either turn back or drown.