Ko te rewharewha rewharewha, e kiia ana ko te whaa whaa, he reera whakahaere me te hanga ngawari, ka taea te whakamahi mo te huri i te mana o te reo i roto i te paipa pehanga iti. Ko te rewharewha rerehua e tohu ana ki te takirere he kopae tona wahi kati (kopae takirere, pereti rererereke ranei) ka huri huri noa i te pou takirere hei whakatuwhera me te kati.