Gacabari
Rwandan tradional way of sex where a man flaps his penis on the woman vagina in particular clitoris( Only Rwandese in the world master this art) unitl the woman reaches orgasm.
You constantly flap the penis head up and down of the vagina and you dont get into the vagina until a woman comes and when you get into her, you round around all the time to make it real gacabari.