b-room bbbbbb bo-hoo bobbos bobsup bohush bombom bombur bombus bomhus bomohs booboo boohoo boom-o boorus borbor bormus boromo bororo bosoms bososo bospop bossom bossou boubou bourou bousso boussu bousum bromo- bromos bromus brooms brorup brosso brubru brumus brusor bububu buhsum bumboo bumppo bumpus burbur burhou burosh burros burrup bushop bushsr bussh- bussho bussum h-bomb h-hour hbombs ho-hum hohoho hohums hommos hommus hoohoo hoopoo hooroo hop-up hoppos hoppus hopsup hororo horror hossur houmus housos hpruso hrrmph hrrors hubbub hubrus hububb huh-uh humhub humhum hummum hummus humors humour humous humphs hurroo hurumu hushom hushup mbombo mbomou mhorrs mm-hmm mmmbop mohoro mohuhu mommur moomoo moopoo moorup mooshu moosup mop-up mopsup mopsus mopups morbus mormor mormos mormur moroso moross morous morph- morpho morphs morphu morros morsum mososo mossoo mossop mouros mourou mousum mpombo mrsmop muhuhu muhurr muhuru murmur mushom musmus mussum mussup muumuu obosom obsorb ohhush ohohoh ohpooh ombro- oohooh oomphs oooooo opshop opssum orobus oromoo oropom oropos orrho- orrour osburh osmous osommo osoppo ossous ououso ousrou phobo- phobos phoro- phoros phorum phorus phosop phusro poboru pombos pombur pomors pompom poopoo pop-up popopo poporo poppop popsup popups porous porpos porpus porrum poshos possum poupou pppppp ppsspp probus promos proors proph- propho propos propup propur propus proso- prosom prosso prusso psoro- pubsub pumpup purpur pushmo pushup pusso- rhomb- rhombs rhosus rhumbs robomb robous romoos romour rompus roshor rossum rub-up rubro- rubrum rubsup ruhroh rumbur rumohr rumors rumour rumpus rupshu rushop russo- russus rusumo shboom shmoos shmups shobup shoops shoosh shroom shroub shrubs shshsh shursh smohor smoosh sobos sohmor sohouo sombor soomro soosoo sophom sophos sopors sopsup sorbus sorors sorous sorrus sorsor sorsum sorup soupup sourou sousou spohrs spooms spoors sporo- sporus sprush srprss subpop suburb sum-up summum sumoom sumoor sumphs sumsup sumuru suppos suroso sursum surumu susumu susurr ubombo ubussu uh-huh uhhuhs um-hum umbuss uppoor upprop uprush upshur urhobo urobos uruppu usbhub usurps