d-loop dododo dollop dollup dololo dolool doloop dolour domdom domlur domrud doomrl dopplr dordum dorood doropo dororo doudou doulou dourou drdoom drmoul dromo- dromod droplr drummr drumup duldul duloup dulpod dululu dumdum duplo- duplum durdum lloro lo-pro lodurr lollop lollum loloru lomlom looloo loomup loplop loroum loulou lourlo ludlum lumpur lurulu m-drop moddom moddum modolo modull modulo moldo- mollom molodo molopo molour molpro mommur moodur moomoo moopoo moorup mop-up mordor mordru morlop mormor mormur morodo morolo mouddo mourou mudomo mullum mullur mulmul mulmur murdur murmur muumuu oldpro olodum oooooo oordoo opdorp ordoru ordrup ormolu ormrod oromoo oropom orrour oudorp ourold podlom podmol poduru polpol poluru pomolo pompom poodur poopoo pop-up popduo popopo poporo poppop populo porrum poupou pppppp prodml prolom promod propup propur prulom pullup pullur pulmo- pumpup purloo purpur r-loop rm-odp rodlo rollup romolo romour romrod romulo rudrur rumdum rumour ruurlo udullu ulloor umudlu umurlu uppoor upprop uproll uropod uruppu