b-room bbbbbb bo-hoo bobrun boddom bodrum bombom bombon bombur bonbon bondon bonnor bonobo bonomo booboo boohoo boom-o boondh borbon borbor bordon bordun bornon bornum boromo bororo boubou boudon boudou bounou bourou brodno bromo- bronno brubru brudno bruron buborn bububu budrum bumboo bundoo burbur burdon burdur burhou burnou burnum dhundh do-hun dobron dobrun dododo domdom domrud dondom dondon donoor donour dorbod dordon dordum dornum dorobo dorond dorood dororo doudou dourou drdoom dromo- dromod dromon drumbo drummr dubdub duddon duhour dumdum dundun dundur dunoon dunord durdum h-bomb h-hour ho-hum hobnob hoddom hodhur hohoho hohrod homrun hondor honnor honomu honor- honour hoodoo hoohoo hooroo hormud hornum horonu hororo horror hubbub hubdub huboon hububb huddon hudood huh-uh humdon humhub humhum hummum humour hundon hundun hunnum hunnur hurdom hurdon hurmon hurroo hurumu mbombo mbomou mbundu mm-hmm moddom moddum modron mohoro mohuhu mommur mondon mondor moodur moomoo mordon mordor mordru mormon mormor mormur morodo moroun mouddo moudon mouron mourou mrbond mrnoon mudomo mudrun muhuhu muhurr muhuru mundon mundoo mundru mundum mundur munnur murdur murmur muumuu n-bomb nnundu noboru nombur nomnom nomoon non-no nondom nonmud nonodd nonono nonoon noonoo noonor normo- normob normud noromo noroom nounou nuh-uh nunmor obudno odoorn ohnono ohohoh ombro- onhuno oohooh oooooo oordoo ordoru ormond ormrod oromoo orrho- orrour ourdon ouroun rhodo- rhodon rhomb- robomb roddon romour romrod rondon ronnon ronron roomon roound roudno roundo roundu rounou rubbon rubro- rubrum ruddon rudnun rudrur ruhroh rumbud rumbur rumdum rumohr rumour run-on ubombo ubundu udburu uh-huh um-hum unborn unburn undurn unh-uh unhood unhunh unmoor urhobo urmond urodon