ho-hum hohoho hohums hommos hommus hoohoo hoopoo hop-up hoppos hoppus hopsup houmus housos huh-uh humhum hummum hummus humous humphs hushom hushup mm-hmm mohuhu moomoo moopoo mooshu moosup mop-up mopsup mopsus mopups mososo mossoo mossop mousum muhuhu mushom musmus mussum mussup muumuu ohhush ohohoh ohpooh oohooh oomphs oooooo opshop opssum osmous osommo osoppo ossous ououso phosop pompom poopoo pop-up popopo poppop popsup popups poshos possum poupou pppppp ppsspp pumpup pushup pusso- shmoos shmups shoops shoosh shshsh smoosh sohouo soosoo sophom sophos sopsup soupup sousou spooms sum-up summum sumoom sumphs sumsup suppos susumu uh-huh uhhuhs um-hum