ddmmyy dododo domdom domrud domuyo dordum dorood dororo dorroy doudou dourou drdoom dromo- dromod droumy drummr drummy drumry drymou duhour dumdum durdum h-hour ho-hum hoddom hodhur hohoho hohrod hoodoo hoohoo hooroo hormud hororo horror houdry hudood huh-uh humhum hummum humour hurdom hurroo hurumu hydour hydro- hydrom mm-hmm moddom moddum mohoro mohuhu mommur moodur moomoo mordor mordru mormor mormur mormyr morodo mouddo mourou mudomo muhuhu muhurr muhuru murdur murmur muumuu mydoom mymymy myohmy myomo- myroom myrour myrrhy ohmymy ohohoh oohooh oooooo oordoo ordoru ormrod oromoo ororry orrho- orrour orrouy oyodo rhodo- romour romrod rudrur ruhroh rumdum rumohr rumour rymour ryu-oh ryuo uh-huh um-hum yohmor yohoho yoohoo yoyoyo yuddho yumyum