a-hmao aaamap amamau amomum ampho- hahaha hahhah hamama hammah hammam hauhua ho-hum hohoho hoo-ha hoohaa hoohah hoohoo hoopoo hop-up huh-uh humhum hummum humppa huppah ma-mha mahama mahuma mamamu mammo- maohou maomao maumau mm-hmm mohoao mohoua mohuhu mompha moomoo moopoo mop-up muhooa muhuhu muumuu ohmama ohohoh ohpooh oohooh oompah oooooo op-amp oppama paao paopao pham pomama pompom poopoo pop-up popham popopo poppop poupou pppppp puaumu pumpup uh-huh um-hum umauma