b-room bbbbbb bobrok boccob bockum bocock bokkom bokomo bokoro bombom bombur booboo boom-o borbor borkou borkum boroko boromo bororo boubou boukou bourou brocco brocor brokkr bromo- broock brouck brubru bububu bucco- bukkur bukuru bumboo burbur buruku c-bomb cobbob cocco- cococo cocomo comcom comobo comoro coocoo cookoo cormo- cormor corour coruco coruro courbu courr- crocco cromok cruro- cuckoo cucurb cumbum curmur curour curror cururo k-rock koboko kokoku kokomo kokoro kokubo komkor komoro komuro kookoo korkor kormuk koromo kororo koroum korubo koruru koubou koukou kouoro kourou krokom kukoc kukuom kum-bu kumbor kumbuk kumbum kumbur kumkum kurkcu kurmuk kuroko kururu mbombo mbomou mborko mccomb mccook mccrum mcrobb mmuock mocock mococo mocuck mokoro mommur momoko moomoo mooruk morcok morcom mormor mormur moroco mourou mubuko mukuro mukuru murcok murmur muumuu occour okumoo ombro- ookroo oooooo oromoo orrock orrour rcrumb robomb rococo rokkor rokuko rokuro romcom romour roucou rubro- rubrum rumbur rumour ruocco ubombo ucurum