chuchu chuluu chumps chushu clumps cppcms cullum cumul- cuppul cuscus huh-uh huluhu humhum hummum hummus humphs hushup husulu lullus lummus lumpus luscus mlscup mm-hmm muccus muchuu mucluc muhuhu mullum mullus mulmul mulsum muscul musmus mussum mussup muumuu phlppl plumps pppppp ppsspp pullup pullus pulsus pumpup pushup s-l-m s-plus schuch schull schulp schupp schuss sculch sculls sculps sculsh shmups shshsh slumps succus sulcus sulph- sum-up summum sumphs sumsup susulu susumu uh-huh uhhuhs ullucu um-hum umuchu upsssc