Yoruba

In the parlour, she could hear Aunty Biola attempting to teach her father Yoruba, collapsing into helpless giggles whenever he mispronounced his vowels, giving them the flat English sound instead of lifting them upwards with the slight outward puff of breath that was required.

The Yoruba practitioner describes it as a condition where a man's semen will flow out of the vagina before fertilization can take place.