loulou lourlo lubber lubbor lubech lubeck lubefu lubero lucero luchko luchob lucker luckof lucule luffer lufful lukulu luller lurcke lurker lurulu o-blek o-bofe o-hook obcell obeche oberek obloke oboler obreck occour occure ocho ochro- ockere oclock ocreo- oculo- oehler oelfke oerbke ofblue oferre ohcool ohheck ohhell ohlook ohohoh okeefe okello okerer okhlee okolek okollo okoure olecko oleelo oleole olluco olobok oluklu oohooh ookroo oooooo orbell orchel orcure oreche oreful orelec orelle orloff orobol oroluk orrell orrho- orrock orrour oucher ouelle ouerre ouller ourche re-foc rebbec rebble rebeck rebell rebelo rebeuc reboke rebook rebore rebouk rebour rebuck rebuff rebuke rebulb recche reckle recloh reclue recock recoll recook recool recore recork recour recreo recrue recuer recule recull recurb recure reebok reecho reefer reeffe reeker reekof reeler reeuel refeel refeff refell reflee refloo reflue refuce refuck refuel refurb refurl rehber rehboc reheel reheur rehook relece releef releke reller relleu rellou relock relook reluce rereel rerobe reroll reroof rerule reubke reuele reuere reufol reuler reulle reulor reuour rheboc rhebok robber robble robeco robel robell robolo rocher rochor rockel rocker rockof rococo rocolo roelof roffle roflol rokker rokkor rokuko rokuro rolfer rolleo roller rolock roloff roofer rooker rookle rorek rouble rouche roucou rouffe rouful rouler rourke rubbee rubbel rubber rubble rubell ruboff rubro- ruchek rucker ruckle rueful ruelle ruffec ruffer ruffle ruhroh rukkle ruller ruocco rurkee ruurlo uecker uforce uh-huh uherce ukhrul ulehle ullock ulloor ulluco ullucu uoluel urecco urecho urhobo urkulu urouer uroure uruffe