bbuss blobs bloop bloor blorb blorp bloso bloss blubs blurb blurr blurs bo-bo bobos bobr bobup boll- bollo bolls bollu bolos bolus boobs bools boops boors booru borbo boro- boroo boros borou borro borsu borul borup borus bosor bosso boul- boulo bouls bours bplus brobo brobs broll brolo brool broos bross brous brrrr brull bruss bsous bulb- bulbs bull- bulls bulou bulul bulus burbs burls burol buroo buros burps burro burrs burru burus busso bussu busur busuu l-pop llrrs lobbo lobo- lobor lobos lobus lollo lolls lolol lolos loobu lools loops loosu lopou loros lorup loups louro lours louss lubos lubur lulls lulul lulus lupsu lupul lupus lurup luso- lusso lusus o-r-b oblos obolo obols oboro ollup ollur olour olous ooooo oploo opobo oppol oppos orbus orlop orlos orobo orolu oroso orosu oruro ososo ossos ossur osusu oullo ouoro ourol ploop plopp plops plopu plupp po-po polbo pollo polls pollu polop polos polur polus pools poopo poops poors poplr popop popos poppo popup poro- poros porro porur porus posol poulp pours pouss probo probs proll prolo proor prop- propl propp propr props pros- proso pross pruss psor- psoup pubo- pull- pulls pullu pulps puppo purls puro- puros purrs purul purus puurs ro-ro robbo robbs robo- robop robor robur rollo rolls rolos roops ropos rorbu rosol rosso rosss rosu roull roups rprop rrsps rubor rubup rubus rullo rusor russo s-bus s-o-r slobo slobs sloop sloor sloos slops slorp sloss sloup slour slubs slurb slurp slurs sluss so-lo so-so sobol sobor solor solos solus soolu sooru sopor soppo sopup sorbo sorbs sorol soror soros sorso sorsu sorus soss- sosus soulo souls soups sours sous- spol spool spoor spor- sporl sporo spors sposo spoul spurl spurr spurs spuul srprb ssbul sssrb sssss subbu subos subss sulls sulur sulus supls supor suppl supps supur surbl surbo surpu surul surur surus susso susus u-pop ubobo ullur uloop ulous ulpur ululu uluru uorps upolo upolu urbos uroob uros urour urous ursus urubu usour usurp uuuuu