bbbbbb bodrog bogodo bogoro booboo borbor borogo bororo botoro boubou boudou bougou bourou boutob brotto brubru brutto bububu buddug budugu bugbug bugout burbot burbur burdur burgoo burgor burotu burutu butbro buttto buutuo dobrut dododo dogood doorto dorbod dorbug dorobo dorood dororo dotbot dotdot dotodo dotorg doudou dourou doutou doutro drobot drouot dubdub dugdug dugout durtro g-bbdg go-out gobbur goddod goddot godord gogbot gogoro good-o goodto googoo gooroo gorgor gotour gotout goudou gourou grorud grotto grugru gubgub guduru gurbru gurugu gutrot guttur obourg obturb oooooo oordoo ordoru orrour ortrud ortug ottoor outbud outour outtro robo-g roboto roogoo rorodt rotgut rotour rotout rotrou routot rubbot rubout rubro- rubutu rudgur rudrur rurutu rutour toboot togout togrog tootoo torgod torgot torgut torodo tororo tortor tortou totoro totrot toudou tougbo tourou toutou toutuo troggu trotro tuborg tugrug tuotuo turbo- turbot turgor turgot turgut turtur tururu tutour tuttut u-boot udburu utroor