Ithuluzi lokuphotha ngesandla elakhiwe ngesisindo esiyindilinga esifakwe endukwini yokhuni. Umphothi udonsa umucu, ashaye isipindi ngeminwe ukuze sizungeze, bese ukuphotha kukhuphuka kumucu odonsiwe kwakhe intambo. Kusetshenziswe emhlabeni wonke kusukela enkathini ye-Neolithic.