bhoom bhoot bhour bmp-r bo-bo bo-ho bobr bobup bohor bohot bombo bomoh boomb boort booru booth borbo bormo boro- borom boroo borot borou borro borth borum borup borut botom botou botro bottu bouth bouto brmmm brobo brohm brom- bromo broom broth broto brout brrrr brumm btr-t bumbo bumbu bumph bumpo buoho buroo burro burru burtt burut buto- butoh butor butot butou butuo butut hbomb hhhhh hhour ho-ho ho-oh hobor hobro hobub hohot hohum homo- hoort hoppo hopto hopup horom horro horru horth horto horup hothr hotot hotto houtu hrmph hropt hthrt httpr htuom hubur huhuh humbo humor humph humur hurm hurtt hurtu hurum hurup hutor hutto huttu hutup huuru mboro mburu mhorr mmhmm mmmmm mobor mobot mobro mohor mohur mombo mombu momot mooro mooth mooto mopup morbo mormo morop moror morou morph morro morth morum morup morut motho moto- motor motru motto mottu mouht mouth mpbou mrmom mrorr mt-th mt-tm mt-tp mt-tr mt-tt mtoto mumbo mummu muppu murom muror murot murph murrh murro murru murth murum murup murut muthu muto- mutum mutuo muuto o-hum o-r-b obhor oboro oboth obout obrom oh-oh ohbot ohmmm ohour ohrob ohrot ohrum omoro omoto omout omupo oomph ooooh ooooo ophur opobo opoho oppum opto- optot optto opump orbom orbot ormur orobo oromo orout orrum orth- ortho ortoo oruro orutu othom othou othur otomo ototo otour otpor ottom ottur oubut ouoro outro outto phob- phorm phot- photo photu phpbb phpht phrop phtpp phutu pmhub po-po pombo pomor pompu pomum poopo poort popop poppo popup poro- porro porth porto portu porum porur potom potoo potop potor potro potto pottu probo promo promt proor proot prop- propp propr propt prot- proto prout prtor ptprb ptprh ptprm ptpro ptprr ptprt ptpru pubo- puhmu puhtu puppo purmo puro- purum putor putt- putto puttu putuo putup rhomb rhumb rmutt ro-ro robbo robo- robop robor robot robrt robur rohob rohru rompo rompt rompu romth roomu rorbu rotho roto- rotor rotot rotto roubt roumm routh routt rprop rptor rubor rubup ruhub rumbo rummo rummu rumor rumpo rumpt ruomu ruthu ruuth ruutu t-hub t-pop t-top tbtbt tbutt thomb thomm thoom thoro thorp thorr thort thoru thoth thour thout throb throm throo throp throt throu thrub thrum thttp thumb thump thurm thurt thuru to-ho tobor tobot tobou tohot tombo tombu tommo tomo- tomom tomor tooth topbt topo- topor topot toppo toptb topto topup torht torob torpo torro torto tortu toto- totoo totop totum totup touho touro tprot tromm tromp troop trop- tropo troth trott troum troup trout trubu trump trupt truro truth ttttt tu-mo tubo- tubou tumbo tumbu tummo tumor tumut tuomo tuotu tupou turbo turbt turot turph turro turtu turup turut tutor tutto tuuru u-pop ubobo uh-oh uh-uh uhhoh uhhuh uhuru umbro umhum umour upput uptop uroob urour urubu urutu utro- utrop utror utrum uttur uturu ututo uuuuu