mudder umdder mduder dmuder udmder dumder mudder umdder mduder dmuder udmder dumder mdduer dmduer mdduer dmduer ddmuer ddmuer uddmer dudmer uddmer dudmer ddumer ddumer mudedr umdedr mduedr dmuedr udmedr dumedr mueddr umeddr meuddr emuddr uemddr eumddr mdeudr dmeudr medudr emdudr demudr edmudr udemdr duemdr uedmdr eudmdr deumdr edumdr mudedr umdedr mduedr dmuedr udmedr dumedr mueddr umeddr meuddr emuddr uemddr eumddr mdeudr dmeudr medudr emdudr demudr edmudr udemdr duemdr uedmdr eudmdr deumdr edumdr mddeur dmdeur mddeur dmdeur ddmeur ddmeur mdedur dmedur meddur emddur demdur edmdur mdedur dmedur meddur emddur demdur edmdur ddemur ddemur dedmur eddmur dedmur eddmur uddemr dudemr uddemr dudemr dduemr dduemr udedmr duedmr ueddmr euddmr deudmr edudmr udedmr duedmr ueddmr euddmr deudmr edudmr ddeumr ddeumr dedumr eddumr dedumr eddumr muddre umddre mdudre dmudre udmdre dumdre muddre umddre mdudre dmudre udmdre dumdre mddure dmdure mddure dmdure ddmure ddmure uddmre dudmre uddmre dudmre ddumre ddumre mudrde umdrde mdurde dmurde udmrde dumrde murdde umrdde mrudde rmudde urmdde rumdde mdrude dmrude mrdude rmdude drmude rdmude udrmde durmde urdmde rudmde drumde rdumde mudrde umdrde mdurde dmurde udmrde dumrde murdde umrdde mrudde rmudde urmdde rumdde mdrude dmrude mrdude rmdude drmude rdmude udrmde durmde urdmde rudmde drumde rdumde mddrue dmdrue mddrue dmdrue ddmrue ddmrue mdrdue dmrdue mrddue rmddue drmdue rdmdue mdrdue dmrdue mrddue rmddue drmdue rdmdue ddrmue ddrmue drdmue rddmue drdmue rddmue uddrme dudrme uddrme dudrme ddurme ddurme udrdme durdme urddme ruddme drudme rdudme udrdme durdme urddme ruddme drudme rdudme ddrume ddrume drdume rddume drdume rddume muderd umderd mduerd dmuerd udmerd dumerd muedrd umedrd meudrd emudrd uemdrd eumdrd mdeurd dmeurd medurd emdurd demurd edmurd udemrd duemrd uedmrd eudmrd deumrd edumrd mudred umdred mdured dmured udmred dumred murded umrded mruded rmuded urmded rumded mdrued dmrued mrdued rmdued drmued rdmued udrmed durmed urdmed rudmed drumed rdumed muerdd umerdd meurdd emurdd uemrdd eumrdd muredd umredd mruedd rmuedd urmedd rumedd merudd emrudd mreudd rmeudd ermudd remudd uermdd eurmdd uremdd ruemdd erumdd reumdd mderud dmerud medrud emdrud demrud edmrud mdreud dmreud mrdeud rmdeud drmeud rdmeud merdud emrdud mredud rmedud ermdud remdud dermud edrmud dremud rdemud erdmud redmud udermd duermd uedrmd eudrmd deurmd edurmd udremd duremd urdemd rudemd druemd rduemd uerdmd eurdmd uredmd ruedmd erudmd reudmd derumd edrumd dreumd rdeumd erdumd redumd muderd umderd mduerd dmuerd udmerd dumerd muedrd umedrd meudrd emudrd uemdrd eumdrd mdeurd dmeurd medurd emdurd demurd edmurd udemrd duemrd uedmrd eudmrd deumrd edumrd mudred umdred mdured dmured udmred dumred murded umrded mruded rmuded urmded rumded mdrued dmrued mrdued rmdued drmued rdmued udrmed durmed urdmed rudmed drumed rdumed muerdd umerdd meurdd emurdd uemrdd eumrdd muredd umredd mruedd rmuedd urmedd rumedd merudd emrudd mreudd rmeudd ermudd remudd uermdd eurmdd uremdd ruemdd erumdd reumdd mderud dmerud medrud emdrud demrud edmrud mdreud dmreud mrdeud rmdeud drmeud rdmeud merdud emrdud mredud rmedud ermdud remdud dermud edrmud dremud rdemud erdmud redmud udermd duermd uedrmd eudrmd deurmd edurmd udremd duremd urdemd rudemd druemd rduemd uerdmd eurdmd uredmd ruedmd erudmd reudmd derumd edrumd dreumd rdeumd erdumd redumd mdderu dmderu mdderu dmderu ddmeru ddmeru mdedru dmedru meddru emddru demdru edmdru mdedru dmedru meddru emddru demdru edmdru ddemru ddemru dedmru eddmru dedmru eddmru mddreu dmdreu mddreu dmdreu ddmreu ddmreu mdrdeu dmrdeu mrddeu rmddeu drmdeu rdmdeu mdrdeu dmrdeu mrddeu rmddeu drmdeu rdmdeu ddrmeu ddrmeu drdmeu rddmeu drdmeu rddmeu mderdu dmerdu medrdu emdrdu demrdu edmrdu mdredu dmredu mrdedu rmdedu drmedu rdmedu merddu emrddu mreddu rmeddu ermddu remddu dermdu edrmdu dremdu rdemdu erdmdu redmdu mderdu dmerdu medrdu emdrdu demrdu edmrdu mdredu dmredu mrdedu rmdedu drmedu rdmedu merddu emrddu mreddu rmeddu ermddu remddu dermdu edrmdu dremdu rdemdu erdmdu redmdu ddermu ddermu dedrmu eddrmu dedrmu eddrmu ddremu ddremu drdemu rddemu drdemu rddemu derdmu edrdmu dredmu rdedmu erddmu reddmu derdmu edrdmu dredmu rdedmu erddmu reddmu udderm duderm udderm duderm dduerm dduerm udedrm duedrm ueddrm euddrm deudrm edudrm udedrm duedrm ueddrm euddrm deudrm edudrm ddeurm ddeurm dedurm eddurm dedurm eddurm uddrem dudrem uddrem dudrem ddurem ddurem udrdem durdem urddem ruddem drudem rdudem udrdem durdem urddem ruddem drudem rdudem ddruem ddruem drduem rdduem drduem rdduem uderdm duerdm uedrdm eudrdm deurdm edurdm udredm duredm urdedm rudedm druedm rduedm uerddm eurddm ureddm rueddm eruddm reuddm derudm edrudm dreudm rdeudm erdudm redudm uderdm duerdm uedrdm eudrdm deurdm edurdm udredm duredm urdedm rudedm druedm rduedm uerddm eurddm ureddm rueddm eruddm reuddm derudm edrudm dreudm rdeudm erdudm redudm dderum dderum dedrum eddrum dedrum eddrum ddreum ddreum drdeum rddeum drdeum rddeum derdum edrdum dredum rdedum erddum reddum derdum edrdum dredum rdedum erddum reddum
Note: these 'words' (valid or invalid) are all the permutations of the word mudder. These words are obtained by scrambling the letters in mudder.