ho-hum hohloh hohoho holhol holloo hollum holmul holnon honomu hoohoo huh-uh hulloo huluhu humhum hummum hunnum lollum lomlom lonnol looloo loulon loulou lunlun mm-hmm moholl moholm mohuhu mollom moomoo moulon muhuhu mullum mulmul muumuu nomnom nomoon non-no nonono nonoon noonoo nounou nuh-uh null-o ohnono ohohoh omolon omulno onhulu onhuno oohooh oooooo ouolon uh-huh um-hum unh-uh unholl unhool unhull unhunh unlull