Its the opposite of Asian Wet.
AIDS: The Agony of Africa
http://www.villagevoice.com/issues/9948/schoofs.php Part Five: Death and the Second Sex
By Mark Schoofs
December 1-7, 1999
Harare, Zimbabwe and Nigeri Village, Kenya -- Sipewe Mhakeni used herbs from the Mugugudhu tree. After grinding the stem and leaf, she would mix just a pinch of the sand-colored powder with water, wrap it in a bit of nylon stocking, and insert it into her vagina for 10 to 15 minutes. The herbs swell the soft tissues of the vagina, make it hot, and dry it out. That made sex "very painful," says Mhakeni. But, she adds, "Our African husbands enjoy sex with a dry vagina."
Many women concur that dry sex, as this practice is called, hurts. Yet it is common throughout southern Africa, where the AIDS epidemic is worse than anywhere in the world. Researchers conducting a study in Zimbabwe, where Mhakeni lives, had trouble finding a control group of women who did not engage in some form of the practice. Some women dry out their vaginas with mutendo wegudo -- soil with baboon urine -- that they obtain from traditional healers, while others use detergents, salt, cotton, or shredded newspaper. Research shows that dry sex causes vaginal lacerations and suppresses the vagina's natural bacteria, both of which increase the likelihood of HIV infection. And some AIDS workers believe the extra friction makes condoms tear more easily.