bundy ubndy bnudy nbudy unbdy nubdy budny ubdny bduny dbuny udbny dubny bnduy nbduy bdnuy dbnuy ndbuy dnbuy undby nudby udnby dunby nduby dnuby bunyd ubnyd bnuyd nbuyd unbyd nubyd buynd ubynd byund ybund uybnd yubnd bnyud nbyud bynud ybnud nybud ynbud unybd nuybd uynbd yunbd nyubd ynubd budyn ubdyn bduyn dbuyn udbyn dubyn buydn ubydn byudn ybudn uybdn yubdn bdyun dbyun bydun ybdun dybun ydbun udybn duybn uydbn yudbn dyubn ydubn bndyu nbdyu bdnyu dbnyu ndbyu dnbyu bnydu nbydu byndu ybndu nybdu ynbdu bdynu dbynu bydnu ybdnu dybnu ydbnu ndybu dnybu nydbu yndbu dynbu ydnbu undyb nudyb udnyb dunyb nduyb dnuyb unydb nuydb uyndb yundb nyudb ynudb udynb duynb uydnb yudnb dyunb ydunb ndyub dnyub nydub yndub dynub ydnub
Note: these 'words' (valid or invalid) are all the permutations of the word bundy. These words are obtained by scrambling the letters in bundy.