b-room bbbbbb bhurch bo-hoo boccob bochco bochor bochum bochur bombom bombur booboo boohoo boom-o borbor boromo bororo boruch boubou bourou brocco brocho brocor bromo- brooch brouch brubru bububu bucco- buchch bumboo burbur burhou c-bomb chocho chooch choro- chorro chorum chorur chrom- chromo chucho chuchu chumbu chuo church churro cobbob cocco- cococo cocomo comcom comobo comoro coocoo cormo- cormor corour coruco coruro courbu courr- crocco crochu crooch crouch cruro- cucurb cumbum cumhur curmur curour curror cururo h-bomb h-hour ho-hum hocooh hocour hohoho hoohoo hooroo hororo horror hubbub hububb huh-uh humhub humhum hummum humour hurroo hurumu mbombo mbomou mccomb mccrum mcrobb mm-hmm mococo mohoro mohuhu mommur moomoo morcom mormor mormur moroco mourou muchur muchuu muhuhu muhurr muhuru murmur muumuu occour ocho ochro- ohohoh ombro- oohooh oooooo oromoo orrho- orrour rcrumb rhomb- robomb rochor rococo romcom romour roucou rubro- rubrum ruhroh rumbur rumohr rumour ruocco ubombo ucurum uh-huh um-hum umuchu urhobo