bbbbbbb bi-tri- biblio- bifolio billful billibi billiri bilobol biobio biribol birrwil bittill bittour blotout blotowo blowoff blowout blurout blurtit bobbili bobbitt bobliwo bobrowo boiloff bolboli bolillo bollito boo-boo boo-woo bootful bootout borobul borotou borriol botillo boublil bouilli bourout bourrou boutfit bow-wow bowlful britlit britoil brobill brotill bruttii buffolo builtto bullitt burbolt burrill burrito burtoft buruuli buttout buttrio buttwil filburt filfili fillott fillout filotti fiobbio fit-fit fit-out fitroot floorit floruit flowoff fluori- fluoro- folfiri foo-foo footful footrot footrub forblow forflit forloff forrill forroot fortriu fortubo fortuit fou-fou foulout fourtou fritiof fuiloro fulfill furiiru furillo furrour i-built ibiblio illwill iro-bot itororo libtiff libtool liftoff liftout litobor littour littrow littuit llofriu looroll lottorf low-low lowblow lowbrow lowfour lulibub lullubi lututow of-fill off-off oltroto oltului orbito- oroboro ottrott ourloft out-lot outblot outboob outbowl outbutt outflow outfool outfoot outlift outofit outroll outroot outtoil owttour ribitol ribwort riitiir riolobo riotour robiboo robotti robwort rolloff rollout rootfor rootout rootrot rotflol rotoiti roublot row-off rowbour rub-off rub-out rubbour ruotolo tfortwo tibbitt tiburio tiirloo tilfoir tilouli tiriolo tirrill tit-bit to-blow toboliu tofutti toi-toi toilful tol-lol tolibut too-too toolbit torilto toritto tortill tortoli tortour tototoo tottori touboro tourill tow-row towbori tribill triboro trifoil trillil trilofo triobol triollo tro-tro trotoff trotout trubrot trulioo trutowo truwitt tubuli- tubulo- tufillo tul-tul tulilow tuotilo turbill turbott turibio turobow turriff tut-tut twibill twifoil two-bit twofoot twofour ububboo ufotofu uriburu utrillo wibtoft wilbour willful wiltful witbooi witloof witolub wittorf wolfurt wolfwil wolow woo-woo wou-wou wow-wow wowowow wroblow wurruri